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Finding the Fourth Proportional to 297,030.60, 445,545.90 and 75,414.60

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Solution

The fourth proportional to 297,030.60, 445,545.90 and 75,414.60 is: 113,121.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,030.60 : 445,545.90 = 75,414.60 : x
  2. Step 2: Convert to fraction form
    297,030.60/445,545.90 = 75,414.60/x
  3. Step 3: Cross multiply
    297,030.60x = 445,545.90 × 75,414.60
  4. Step 4: Simplify right side
    297,030.60x = 33,600,665,830.14
  5. Step 5: Solve for x
    x = 33,600,665,830.14/297,030.60
  6. Step 6: Final answer
    x = 113,121.90

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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.