Home / 384,729.15-577,039.05-132,021.30

Finding the Fourth Proportional to 384,729.15, 577,039.05 and 132,021.30

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Solution

The fourth proportional to 384,729.15, 577,039.05 and 132,021.30 is: 198,013.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,729.15 : 577,039.05 = 132,021.30 : x
  2. Step 2: Convert to fraction form
    384,729.15/577,039.05 = 132,021.30/x
  3. Step 3: Cross multiply
    384,729.15x = 577,039.05 × 132,021.30
  4. Step 4: Simplify right side
    384,729.15x = 76,181,445,531.77
  5. Step 5: Solve for x
    x = 76,181,445,531.77/384,729.15
  6. Step 6: Final answer
    x = 198,013.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.