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Finding the Fourth Proportional to 284,708.75, 392,902.75 and 169,997.42

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Solution

The fourth proportional to 284,708.75, 392,902.75 and 169,997.42 is: 234,599.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,708.75 : 392,902.75 = 169,997.42 : x
  2. Step 2: Convert to fraction form
    284,708.75/392,902.75 = 169,997.42/x
  3. Step 3: Cross multiply
    284,708.75x = 392,902.75 × 169,997.42
  4. Step 4: Simplify right side
    284,708.75x = 66,792,453,810.91
  5. Step 5: Solve for x
    x = 66,792,453,810.91/284,708.75
  6. Step 6: Final answer
    x = 234,599.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.