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Finding the Fourth Proportional to 234,018.60, 351,027.90 and 155,221.80

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Solution

The fourth proportional to 234,018.60, 351,027.90 and 155,221.80 is: 232,832.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,018.60 : 351,027.90 = 155,221.80 : x
  2. Step 2: Convert to fraction form
    234,018.60/351,027.90 = 155,221.80/x
  3. Step 3: Cross multiply
    234,018.60x = 351,027.90 × 155,221.80
  4. Step 4: Simplify right side
    234,018.60x = 54,487,182,488.22
  5. Step 5: Solve for x
    x = 54,487,182,488.22/234,018.60
  6. Step 6: Final answer
    x = 232,832.70

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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.