Home / 240,128.24-331,402.62-138,158.16

Finding the Fourth Proportional to 240,128.24, 331,402.62 and 138,158.16

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Solution

The fourth proportional to 240,128.24, 331,402.62 and 138,158.16 is: 190,673.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,128.24 : 331,402.62 = 138,158.16 : x
  2. Step 2: Convert to fraction form
    240,128.24/331,402.62 = 138,158.16/x
  3. Step 3: Cross multiply
    240,128.24x = 331,402.62 × 138,158.16
  4. Step 4: Simplify right side
    240,128.24x = 45,785,976,198.38
  5. Step 5: Solve for x
    x = 45,785,976,198.38/240,128.24
  6. Step 6: Final answer
    x = 190,673.02

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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.