Home / 284,741.86-392,909.24-157,399.78

Finding the Fourth Proportional to 284,741.86, 392,909.24 and 157,399.78

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Solution

The fourth proportional to 284,741.86, 392,909.24 and 157,399.78 is: 217,192.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,741.86 : 392,909.24 = 157,399.78 : x
  2. Step 2: Convert to fraction form
    284,741.86/392,909.24 = 157,399.78/x
  3. Step 3: Cross multiply
    284,741.86x = 392,909.24 × 157,399.78
  4. Step 4: Simplify right side
    284,741.86x = 61,843,827,935.97
  5. Step 5: Solve for x
    x = 61,843,827,935.97/284,741.86
  6. Step 6: Final answer
    x = 217,192.61

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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.