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Finding the Fourth Proportional to 284,062.60, 392,006.01 and 156,738.16

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Solution

The fourth proportional to 284,062.60, 392,006.01 and 156,738.16 is: 216,298.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,062.60 : 392,006.01 = 156,738.16 : x
  2. Step 2: Convert to fraction form
    284,062.60/392,006.01 = 156,738.16/x
  3. Step 3: Cross multiply
    284,062.60x = 392,006.01 × 156,738.16
  4. Step 4: Simplify right side
    284,062.60x = 61,442,300,716.34
  5. Step 5: Solve for x
    x = 61,442,300,716.34/284,062.60
  6. Step 6: Final answer
    x = 216,298.45

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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.