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Finding the Fourth Proportional to 440,635.88, 608,081.36 and 239,431.88

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Solution

The fourth proportional to 440,635.88, 608,081.36 and 239,431.88 is: 330,418.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,635.88 : 608,081.36 = 239,431.88 : x
  2. Step 2: Convert to fraction form
    440,635.88/608,081.36 = 239,431.88/x
  3. Step 3: Cross multiply
    440,635.88x = 608,081.36 × 239,431.88
  4. Step 4: Simplify right side
    440,635.88x = 145,594,063,217.76
  5. Step 5: Solve for x
    x = 145,594,063,217.76/440,635.88
  6. Step 6: Final answer
    x = 330,418.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.