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Finding the Fourth Proportional to 437,879.60, 656,819.40 and 157,425.20

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Solution

The fourth proportional to 437,879.60, 656,819.40 and 157,425.20 is: 236,137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,879.60 : 656,819.40 = 157,425.20 : x
  2. Step 2: Convert to fraction form
    437,879.60/656,819.40 = 157,425.20/x
  3. Step 3: Cross multiply
    437,879.60x = 656,819.40 × 157,425.20
  4. Step 4: Simplify right side
    437,879.60x = 103,399,925,408.88
  5. Step 5: Solve for x
    x = 103,399,925,408.88/437,879.60
  6. Step 6: Final answer
    x = 236,137.80

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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.