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Finding the Fourth Proportional to 235,645.60, 353,468.40 and 136,112.80

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Solution

The fourth proportional to 235,645.60, 353,468.40 and 136,112.80 is: 204,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,645.60 : 353,468.40 = 136,112.80 : x
  2. Step 2: Convert to fraction form
    235,645.60/353,468.40 = 136,112.80/x
  3. Step 3: Cross multiply
    235,645.60x = 353,468.40 × 136,112.80
  4. Step 4: Simplify right side
    235,645.60x = 48,111,573,635.52
  5. Step 5: Solve for x
    x = 48,111,573,635.52/235,645.60
  6. Step 6: Final answer
    x = 204,169.20

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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.