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Finding the Fourth Proportional to 540,844.80, 811,267.20 and 225,196.80

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Solution

The fourth proportional to 540,844.80, 811,267.20 and 225,196.80 is: 337,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,844.80 : 811,267.20 = 225,196.80 : x
  2. Step 2: Convert to fraction form
    540,844.80/811,267.20 = 225,196.80/x
  3. Step 3: Cross multiply
    540,844.80x = 811,267.20 × 225,196.80
  4. Step 4: Simplify right side
    540,844.80x = 182,694,777,384.96
  5. Step 5: Solve for x
    x = 182,694,777,384.96/540,844.80
  6. Step 6: Final answer
    x = 337,795.20

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.