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Finding the Fourth Proportional to 240,310.56, 360,253.70 and 90,655.95

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Solution

The fourth proportional to 240,310.56, 360,253.70 and 90,655.95 is: 135,903.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,310.56 : 360,253.70 = 90,655.95 : x
  2. Step 2: Convert to fraction form
    240,310.56/360,253.70 = 90,655.95/x
  3. Step 3: Cross multiply
    240,310.56x = 360,253.70 × 90,655.95
  4. Step 4: Simplify right side
    240,310.56x = 32,659,139,613.25
  5. Step 5: Solve for x
    x = 32,659,139,613.25/240,310.56
  6. Step 6: Final answer
    x = 135,903.89

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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.