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Finding the Fourth Proportional to 240,138, 331,397.06 and 132,714.99

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Solution

The fourth proportional to 240,138, 331,397.06 and 132,714.99 is: 183,150.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,138 : 331,397.06 = 132,714.99 : x
  2. Step 2: Convert to fraction form
    240,138/331,397.06 = 132,714.99/x
  3. Step 3: Cross multiply
    240,138x = 331,397.06 × 132,714.99
  4. Step 4: Simplify right side
    240,138x = 43,981,356,840.35
  5. Step 5: Solve for x
    x = 43,981,356,840.35/240,138
  6. Step 6: Final answer
    x = 183,150.34

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Why These Related Problems?

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