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Finding the Fourth Proportional to 286,325.48, 428,834.17 and 136,671.12

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Solution

The fourth proportional to 286,325.48, 428,834.17 and 136,671.12 is: 204,694.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,325.48 : 428,834.17 = 136,671.12 : x
  2. Step 2: Convert to fraction form
    286,325.48/428,834.17 = 136,671.12/x
  3. Step 3: Cross multiply
    286,325.48x = 428,834.17 × 136,671.12
  4. Step 4: Simplify right side
    286,325.48x = 58,609,246,308.17
  5. Step 5: Solve for x
    x = 58,609,246,308.17/286,325.48
  6. Step 6: Final answer
    x = 204,694.48

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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.