Home / 216,264.01-298,431.96-129,147.43

Finding the Fourth Proportional to 216,264.01, 298,431.96 and 129,147.43

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Solution

The fourth proportional to 216,264.01, 298,431.96 and 129,147.43 is: 178,216.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,264.01 : 298,431.96 = 129,147.43 : x
  2. Step 2: Convert to fraction form
    216,264.01/298,431.96 = 129,147.43/x
  3. Step 3: Cross multiply
    216,264.01x = 298,431.96 × 129,147.43
  4. Step 4: Simplify right side
    216,264.01x = 38,541,720,663.86
  5. Step 5: Solve for x
    x = 38,541,720,663.86/216,264.01
  6. Step 6: Final answer
    x = 178,216.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.