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Finding the Fourth Proportional to 284,168.09, 426,322.29 and 84,487.61

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Solution

The fourth proportional to 284,168.09, 426,322.29 and 84,487.61 is: 126,752.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,168.09 : 426,322.29 = 84,487.61 : x
  2. Step 2: Convert to fraction form
    284,168.09/426,322.29 = 84,487.61/x
  3. Step 3: Cross multiply
    284,168.09x = 426,322.29 × 84,487.61
  4. Step 4: Simplify right side
    284,168.09x = 36,018,951,371.83
  5. Step 5: Solve for x
    x = 36,018,951,371.83/284,168.09
  6. Step 6: Final answer
    x = 126,752.27

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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.