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Finding the Fourth Proportional to 297,176.40, 445,822.20 and 149,432.40

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Solution

The fourth proportional to 297,176.40, 445,822.20 and 149,432.40 is: 224,177.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,176.40 : 445,822.20 = 149,432.40 : x
  2. Step 2: Convert to fraction form
    297,176.40/445,822.20 = 149,432.40/x
  3. Step 3: Cross multiply
    297,176.40x = 445,822.20 × 149,432.40
  4. Step 4: Simplify right side
    297,176.40x = 66,620,281,319.28
  5. Step 5: Solve for x
    x = 66,620,281,319.28/297,176.40
  6. Step 6: Final answer
    x = 224,177.56

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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.