Home / 388,925.50-583,486.68-108,442.75

Finding the Fourth Proportional to 388,925.50, 583,486.68 and 108,442.75

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Solution

The fourth proportional to 388,925.50, 583,486.68 and 108,442.75 is: 162,691.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,925.50 : 583,486.68 = 108,442.75 : x
  2. Step 2: Convert to fraction form
    388,925.50/583,486.68 = 108,442.75/x
  3. Step 3: Cross multiply
    388,925.50x = 583,486.68 × 108,442.75
  4. Step 4: Simplify right side
    388,925.50x = 63,274,900,167.57
  5. Step 5: Solve for x
    x = 63,274,900,167.57/388,925.50
  6. Step 6: Final answer
    x = 162,691.57

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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.