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Finding the Fourth Proportional to 240,359.82, 360,513.78 and 80,417.64

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Solution

The fourth proportional to 240,359.82, 360,513.78 and 80,417.64 is: 120,617.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,359.82 : 360,513.78 = 80,417.64 : x
  2. Step 2: Convert to fraction form
    240,359.82/360,513.78 = 80,417.64/x
  3. Step 3: Cross multiply
    240,359.82x = 360,513.78 × 80,417.64
  4. Step 4: Simplify right side
    240,359.82x = 28,991,667,375.08
  5. Step 5: Solve for x
    x = 28,991,667,375.08/240,359.82
  6. Step 6: Final answer
    x = 120,617.78

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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.