Home / 239,811.32-330,939.68-132,381.42

Finding the Fourth Proportional to 239,811.32, 330,939.68 and 132,381.42

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Solution

The fourth proportional to 239,811.32, 330,939.68 and 132,381.42 is: 182,686.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,811.32 : 330,939.68 = 132,381.42 : x
  2. Step 2: Convert to fraction form
    239,811.32/330,939.68 = 132,381.42/x
  3. Step 3: Cross multiply
    239,811.32x = 330,939.68 × 132,381.42
  4. Step 4: Simplify right side
    239,811.32x = 43,810,264,731.35
  5. Step 5: Solve for x
    x = 43,810,264,731.35/239,811.32
  6. Step 6: Final answer
    x = 182,686.39

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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.