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Finding the Fourth Proportional to 440,520.39, 660,770.10 and 140,999.79

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Solution

The fourth proportional to 440,520.39, 660,770.10 and 140,999.79 is: 211,496.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,520.39 : 660,770.10 = 140,999.79 : x
  2. Step 2: Convert to fraction form
    440,520.39/660,770.10 = 140,999.79/x
  3. Step 3: Cross multiply
    440,520.39x = 660,770.10 × 140,999.79
  4. Step 4: Simplify right side
    440,520.39x = 93,168,445,338.28
  5. Step 5: Solve for x
    x = 93,168,445,338.28/440,520.39
  6. Step 6: Final answer
    x = 211,496.33

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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.