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Finding the Fourth Proportional to 312,397.39, 468,499.07 and 112,691.79

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Solution

The fourth proportional to 312,397.39, 468,499.07 and 112,691.79 is: 169,002.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,397.39 : 468,499.07 = 112,691.79 : x
  2. Step 2: Convert to fraction form
    312,397.39/468,499.07 = 112,691.79/x
  3. Step 3: Cross multiply
    312,397.39x = 468,499.07 × 112,691.79
  4. Step 4: Simplify right side
    312,397.39x = 52,795,999,093.36
  5. Step 5: Solve for x
    x = 52,795,999,093.36/312,397.39
  6. Step 6: Final answer
    x = 169,002.69

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1.5x scale

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.