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Finding the Fourth Proportional to 240,041.55, 360,115.95 and 90,283.14

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Solution

The fourth proportional to 240,041.55, 360,115.95 and 90,283.14 is: 135,444.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,041.55 : 360,115.95 = 90,283.14 : x
  2. Step 2: Convert to fraction form
    240,041.55/360,115.95 = 90,283.14/x
  3. Step 3: Cross multiply
    240,041.55x = 360,115.95 × 90,283.14
  4. Step 4: Simplify right side
    240,041.55x = 32,512,399,068.64
  5. Step 5: Solve for x
    x = 32,512,399,068.64/240,041.55
  6. Step 6: Final answer
    x = 135,444.88

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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.