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Finding the Fourth Proportional to 240,355.60, 360,436.20 and 82,502.80

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Solution

The fourth proportional to 240,355.60, 360,436.20 and 82,502.80 is: 123,720.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,355.60 : 360,436.20 = 82,502.80 : x
  2. Step 2: Convert to fraction form
    240,355.60/360,436.20 = 82,502.80/x
  3. Step 3: Cross multiply
    240,355.60x = 360,436.20 × 82,502.80
  4. Step 4: Simplify right side
    240,355.60x = 29,736,995,721.36
  5. Step 5: Solve for x
    x = 29,736,995,721.36/240,355.60
  6. Step 6: Final answer
    x = 123,720.84

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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.