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Finding the Fourth Proportional to 226,452.59, 312,505.22 and 129,657.93

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Solution

The fourth proportional to 226,452.59, 312,505.22 and 129,657.93 is: 178,928.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,452.59 : 312,505.22 = 129,657.93 : x
  2. Step 2: Convert to fraction form
    226,452.59/312,505.22 = 129,657.93/x
  3. Step 3: Cross multiply
    226,452.59x = 312,505.22 × 129,657.93
  4. Step 4: Simplify right side
    226,452.59x = 40,518,779,434.48
  5. Step 5: Solve for x
    x = 40,518,779,434.48/226,452.59
  6. Step 6: Final answer
    x = 178,928.31

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1.5x scale

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.