Home / 319,689.08-441,139.52-176,439.90

Finding the Fourth Proportional to 319,689.08, 441,139.52 and 176,439.90

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Solution

The fourth proportional to 319,689.08, 441,139.52 and 176,439.90 is: 243,469.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,689.08 : 441,139.52 = 176,439.90 : x
  2. Step 2: Convert to fraction form
    319,689.08/441,139.52 = 176,439.90/x
  3. Step 3: Cross multiply
    319,689.08x = 441,139.52 × 176,439.90
  4. Step 4: Simplify right side
    319,689.08x = 77,834,612,794.85
  5. Step 5: Solve for x
    x = 77,834,612,794.85/319,689.08
  6. Step 6: Final answer
    x = 243,469.73

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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.