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Finding the Fourth Proportional to 540,892.80, 811,339.20 and 146,908.80

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Solution

The fourth proportional to 540,892.80, 811,339.20 and 146,908.80 is: 220,363.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,892.80 : 811,339.20 = 146,908.80 : x
  2. Step 2: Convert to fraction form
    540,892.80/811,339.20 = 146,908.80/x
  3. Step 3: Cross multiply
    540,892.80x = 811,339.20 × 146,908.80
  4. Step 4: Simplify right side
    540,892.80x = 119,192,868,264.96
  5. Step 5: Solve for x
    x = 119,192,868,264.96/540,892.80
  6. Step 6: Final answer
    x = 220,363.20

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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.