Home / 240,130.24-331,405.38-138,160.16

Finding the Fourth Proportional to 240,130.24, 331,405.38 and 138,160.16

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Solution

The fourth proportional to 240,130.24, 331,405.38 and 138,160.16 is: 190,675.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,130.24 : 331,405.38 = 138,160.16 : x
  2. Step 2: Convert to fraction form
    240,130.24/331,405.38 = 138,160.16/x
  3. Step 3: Cross multiply
    240,130.24x = 331,405.38 × 138,160.16
  4. Step 4: Simplify right side
    240,130.24x = 45,787,020,325.66
  5. Step 5: Solve for x
    x = 45,787,020,325.66/240,130.24
  6. Step 6: Final answer
    x = 190,675.78

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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.