Home / 240,128.15-331,446.09-158,516.15

Finding the Fourth Proportional to 240,128.15, 331,446.09 and 158,516.15

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Solution

The fourth proportional to 240,128.15, 331,446.09 and 158,516.15 is: 218,797.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,128.15 : 331,446.09 = 158,516.15 : x
  2. Step 2: Convert to fraction form
    240,128.15/331,446.09 = 158,516.15/x
  3. Step 3: Cross multiply
    240,128.15x = 331,446.09 × 158,516.15
  4. Step 4: Simplify right side
    240,128.15x = 52,539,557,056.56
  5. Step 5: Solve for x
    x = 52,539,557,056.56/240,128.15
  6. Step 6: Final answer
    x = 218,797.99

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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.