Home / 382,956.30-528,135.66-239,729.40

Finding the Fourth Proportional to 382,956.30, 528,135.66 and 239,729.40

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Solution

The fourth proportional to 382,956.30, 528,135.66 and 239,729.40 is: 330,611.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,956.30 : 528,135.66 = 239,729.40 : x
  2. Step 2: Convert to fraction form
    382,956.30/528,135.66 = 239,729.40/x
  3. Step 3: Cross multiply
    382,956.30x = 528,135.66 × 239,729.40
  4. Step 4: Simplify right side
    382,956.30x = 126,609,644,890.40
  5. Step 5: Solve for x
    x = 126,609,644,890.40/382,956.30
  6. Step 6: Final answer
    x = 330,611.21

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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.