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Finding the Fourth Proportional to 487,855.03, 731,248.71 and 251,211.91

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Solution

The fourth proportional to 487,855.03, 731,248.71 and 251,211.91 is: 376,542.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,855.03 : 731,248.71 = 251,211.91 : x
  2. Step 2: Convert to fraction form
    487,855.03/731,248.71 = 251,211.91/x
  3. Step 3: Cross multiply
    487,855.03x = 731,248.71 × 251,211.91
  4. Step 4: Simplify right side
    487,855.03x = 183,698,385,124.14
  5. Step 5: Solve for x
    x = 183,698,385,124.14/487,855.03
  6. Step 6: Final answer
    x = 376,542.98

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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.