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Finding the Fourth Proportional to 240,090.20, 360,135.30 and 82,320.02

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Solution

The fourth proportional to 240,090.20, 360,135.30 and 82,320.02 is: 123,480.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,090.20 : 360,135.30 = 82,320.02 : x
  2. Step 2: Convert to fraction form
    240,090.20/360,135.30 = 82,320.02/x
  3. Step 3: Cross multiply
    240,090.20x = 360,135.30 × 82,320.02
  4. Step 4: Simplify right side
    240,090.20x = 29,646,345,098.71
  5. Step 5: Solve for x
    x = 29,646,345,098.71/240,090.20
  6. Step 6: Final answer
    x = 123,480.03

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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.