Home / 439,431.28-659,118.67-140,126.36

Finding the Fourth Proportional to 439,431.28, 659,118.67 and 140,126.36

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Solution

The fourth proportional to 439,431.28, 659,118.67 and 140,126.36 is: 210,180.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,431.28 : 659,118.67 = 140,126.36 : x
  2. Step 2: Convert to fraction form
    439,431.28/659,118.67 = 140,126.36/x
  3. Step 3: Cross multiply
    439,431.28x = 659,118.67 × 140,126.36
  4. Step 4: Simplify right side
    439,431.28x = 92,359,896,389.23
  5. Step 5: Solve for x
    x = 92,359,896,389.23/439,431.28
  6. Step 6: Final answer
    x = 210,180.52

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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.