Home / 439,553.28-659,322.98-140,031.30

Finding the Fourth Proportional to 439,553.28, 659,322.98 and 140,031.30

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Solution

The fourth proportional to 439,553.28, 659,322.98 and 140,031.30 is: 210,044.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,553.28 : 659,322.98 = 140,031.30 : x
  2. Step 2: Convert to fraction form
    439,553.28/659,322.98 = 140,031.30/x
  3. Step 3: Cross multiply
    439,553.28x = 659,322.98 × 140,031.30
  4. Step 4: Simplify right side
    439,553.28x = 92,325,854,009.27
  5. Step 5: Solve for x
    x = 92,325,854,009.27/439,553.28
  6. Step 6: Final answer
    x = 210,044.74

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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.