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Finding the Fourth Proportional to 547,502.55, 821,253.84 and 206,010.21

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Solution

The fourth proportional to 547,502.55, 821,253.84 and 206,010.21 is: 309,015.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,502.55 : 821,253.84 = 206,010.21 : x
  2. Step 2: Convert to fraction form
    547,502.55/821,253.84 = 206,010.21/x
  3. Step 3: Cross multiply
    547,502.55x = 821,253.84 × 206,010.21
  4. Step 4: Simplify right side
    547,502.55x = 169,186,676,041.71
  5. Step 5: Solve for x
    x = 169,186,676,041.71/547,502.55
  6. Step 6: Final answer
    x = 309,015.32

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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.