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Finding the Fourth Proportional to 625,384.88, 938,064.36 and 152,072.72

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Solution

The fourth proportional to 625,384.88, 938,064.36 and 152,072.72 is: 228,105.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,384.88 : 938,064.36 = 152,072.72 : x
  2. Step 2: Convert to fraction form
    625,384.88/938,064.36 = 152,072.72/x
  3. Step 3: Cross multiply
    625,384.88x = 938,064.36 × 152,072.72
  4. Step 4: Simplify right side
    625,384.88x = 142,653,998,760.26
  5. Step 5: Solve for x
    x = 142,653,998,760.26/625,384.88
  6. Step 6: Final answer
    x = 228,105.93

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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.