Home / 318,154.27-477,577.22-128,745.03

Finding the Fourth Proportional to 318,154.27, 477,577.22 and 128,745.03

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Solution

The fourth proportional to 318,154.27, 477,577.22 and 128,745.03 is: 193,257.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,154.27 : 477,577.22 = 128,745.03 : x
  2. Step 2: Convert to fraction form
    318,154.27/477,577.22 = 128,745.03/x
  3. Step 3: Cross multiply
    318,154.27x = 477,577.22 × 128,745.03
  4. Step 4: Simplify right side
    318,154.27x = 61,485,693,516.22
  5. Step 5: Solve for x
    x = 61,485,693,516.22/318,154.27
  6. Step 6: Final answer
    x = 193,257.48

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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.