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Finding the Fourth Proportional to 263,609.70, 395,414.55 and 121,454.70

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Solution

The fourth proportional to 263,609.70, 395,414.55 and 121,454.70 is: 182,182.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,609.70 : 395,414.55 = 121,454.70 : x
  2. Step 2: Convert to fraction form
    263,609.70/395,414.55 = 121,454.70/x
  3. Step 3: Cross multiply
    263,609.70x = 395,414.55 × 121,454.70
  4. Step 4: Simplify right side
    263,609.70x = 48,024,955,545.89
  5. Step 5: Solve for x
    x = 48,024,955,545.89/263,609.70
  6. Step 6: Final answer
    x = 182,182.05

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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.