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Finding the Fourth Proportional to 240,607.80, 332,073.72 and 138,613.40

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Solution

The fourth proportional to 240,607.80, 332,073.72 and 138,613.40 is: 191,306.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,607.80 : 332,073.72 = 138,613.40 : x
  2. Step 2: Convert to fraction form
    240,607.80/332,073.72 = 138,613.40/x
  3. Step 3: Cross multiply
    240,607.80x = 332,073.72 × 138,613.40
  4. Step 4: Simplify right side
    240,607.80x = 46,029,867,379.85
  5. Step 5: Solve for x
    x = 46,029,867,379.85/240,607.80
  6. Step 6: Final answer
    x = 191,306.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.