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Finding the Fourth Proportional to 291,726.70, 437,590.05 and 242,519.20

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Solution

The fourth proportional to 291,726.70, 437,590.05 and 242,519.20 is: 363,778.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,726.70 : 437,590.05 = 242,519.20 : x
  2. Step 2: Convert to fraction form
    291,726.70/437,590.05 = 242,519.20/x
  3. Step 3: Cross multiply
    291,726.70x = 437,590.05 × 242,519.20
  4. Step 4: Simplify right side
    291,726.70x = 106,123,988,853.96
  5. Step 5: Solve for x
    x = 106,123,988,853.96/291,726.70
  6. Step 6: Final answer
    x = 363,778.80

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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.