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Finding the Fourth Proportional to 540,846.80, 811,270.20 and 225,198.80

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Solution

The fourth proportional to 540,846.80, 811,270.20 and 225,198.80 is: 337,798.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,846.80 : 811,270.20 = 225,198.80 : x
  2. Step 2: Convert to fraction form
    540,846.80/811,270.20 = 225,198.80/x
  3. Step 3: Cross multiply
    540,846.80x = 811,270.20 × 225,198.80
  4. Step 4: Simplify right side
    540,846.80x = 182,697,075,515.76
  5. Step 5: Solve for x
    x = 182,697,075,515.76/540,846.80
  6. Step 6: Final answer
    x = 337,798.20

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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.