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Finding the Fourth Proportional to 284,680.20, 427,153.14 and 126,892.20

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Solution

The fourth proportional to 284,680.20, 427,153.14 and 126,892.20 is: 190,397.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,680.20 : 427,153.14 = 126,892.20 : x
  2. Step 2: Convert to fraction form
    284,680.20/427,153.14 = 126,892.20/x
  3. Step 3: Cross multiply
    284,680.20x = 427,153.14 × 126,892.20
  4. Step 4: Simplify right side
    284,680.20x = 54,202,401,671.51
  5. Step 5: Solve for x
    x = 54,202,401,671.51/284,680.20
  6. Step 6: Final answer
    x = 190,397.51

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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.