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Finding the Fourth Proportional to 538,516.80, 807,920.60 and 164,529.60

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Solution

The fourth proportional to 538,516.80, 807,920.60 and 164,529.60 is: 246,838.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,516.80 : 807,920.60 = 164,529.60 : x
  2. Step 2: Convert to fraction form
    538,516.80/807,920.60 = 164,529.60/x
  3. Step 3: Cross multiply
    538,516.80x = 807,920.60 × 164,529.60
  4. Step 4: Simplify right side
    538,516.80x = 132,926,853,149.76
  5. Step 5: Solve for x
    x = 132,926,853,149.76/538,516.80
  6. Step 6: Final answer
    x = 246,838.82

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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.