Home / 284,731.55-392,937.74-157,415.35

Finding the Fourth Proportional to 284,731.55, 392,937.74 and 157,415.35

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Solution

The fourth proportional to 284,731.55, 392,937.74 and 157,415.35 is: 217,237.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,731.55 : 392,937.74 = 157,415.35 : x
  2. Step 2: Convert to fraction form
    284,731.55/392,937.74 = 157,415.35/x
  3. Step 3: Cross multiply
    284,731.55x = 392,937.74 × 157,415.35
  4. Step 4: Simplify right side
    284,731.55x = 61,854,429,905.62
  5. Step 5: Solve for x
    x = 61,854,429,905.62/284,731.55
  6. Step 6: Final answer
    x = 217,237.71

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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.