Home / 318,128.00-477,118.17-140,538.12

Finding the Fourth Proportional to 318,128.00, 477,118.17 and 140,538.12

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Solution

The fourth proportional to 318,128.00, 477,118.17 and 140,538.12 is: 210,774.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,128.00 : 477,118.17 = 140,538.12 : x
  2. Step 2: Convert to fraction form
    318,128.00/477,118.17 = 140,538.12/x
  3. Step 3: Cross multiply
    318,128.00x = 477,118.17 × 140,538.12
  4. Step 4: Simplify right side
    318,128.00x = 67,053,290,629.64
  5. Step 5: Solve for x
    x = 67,053,290,629.64/318,128.00
  6. Step 6: Final answer
    x = 210,774.57

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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.