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Finding the Fourth Proportional to 284,178.60, 392,166.23 and 156,853.89

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Solution

The fourth proportional to 284,178.60, 392,166.23 and 156,853.89 is: 216,458.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,178.60 : 392,166.23 = 156,853.89 : x
  2. Step 2: Convert to fraction form
    284,178.60/392,166.23 = 156,853.89/x
  3. Step 3: Cross multiply
    284,178.60x = 392,166.23 × 156,853.89
  4. Step 4: Simplify right side
    284,178.60x = 61,512,797,917.87
  5. Step 5: Solve for x
    x = 61,512,797,917.87/284,178.60
  6. Step 6: Final answer
    x = 216,458.23

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