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Finding the Fourth Proportional to 235,440.60, 353,160.90 and 135,907.80

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Solution

The fourth proportional to 235,440.60, 353,160.90 and 135,907.80 is: 203,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,440.60 : 353,160.90 = 135,907.80 : x
  2. Step 2: Convert to fraction form
    235,440.60/353,160.90 = 135,907.80/x
  3. Step 3: Cross multiply
    235,440.60x = 353,160.90 × 135,907.80
  4. Step 4: Simplify right side
    235,440.60x = 47,997,320,965.02
  5. Step 5: Solve for x
    x = 47,997,320,965.02/235,440.60
  6. Step 6: Final answer
    x = 203,861.70

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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.