Home / 380,881.39-571,396.76-140,997.13

Finding the Fourth Proportional to 380,881.39, 571,396.76 and 140,997.13

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Solution

The fourth proportional to 380,881.39, 571,396.76 and 140,997.13 is: 211,523.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,881.39 : 571,396.76 = 140,997.13 : x
  2. Step 2: Convert to fraction form
    380,881.39/571,396.76 = 140,997.13/x
  3. Step 3: Cross multiply
    380,881.39x = 571,396.76 × 140,997.13
  4. Step 4: Simplify right side
    380,881.39x = 80,565,304,679.79
  5. Step 5: Solve for x
    x = 80,565,304,679.79/380,881.39
  6. Step 6: Final answer
    x = 211,523.34

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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.