Home / 308,128.23-425,177.87-180,757.35

Finding the Fourth Proportional to 308,128.23, 425,177.87 and 180,757.35

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Solution

The fourth proportional to 308,128.23, 425,177.87 and 180,757.35 is: 249,422.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,128.23 : 425,177.87 = 180,757.35 : x
  2. Step 2: Convert to fraction form
    308,128.23/425,177.87 = 180,757.35/x
  3. Step 3: Cross multiply
    308,128.23x = 425,177.87 × 180,757.35
  4. Step 4: Simplify right side
    308,128.23x = 76,854,022,933.96
  5. Step 5: Solve for x
    x = 76,854,022,933.96/308,128.23
  6. Step 6: Final answer
    x = 249,422.21

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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.