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Finding the Fourth Proportional to 223,149.60, 334,432.80 and 89,920.80

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Solution

The fourth proportional to 223,149.60, 334,432.80 and 89,920.80 is: 134,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,149.60 : 334,432.80 = 89,920.80 : x
  2. Step 2: Convert to fraction form
    223,149.60/334,432.80 = 89,920.80/x
  3. Step 3: Cross multiply
    223,149.60x = 334,432.80 × 89,920.80
  4. Step 4: Simplify right side
    223,149.60x = 30,072,464,922.24
  5. Step 5: Solve for x
    x = 30,072,464,922.24/223,149.60
  6. Step 6: Final answer
    x = 134,763.70

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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.