Home / 272,282.90-408,424.35-172,555.70

Finding the Fourth Proportional to 272,282.90, 408,424.35 and 172,555.70

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Solution

The fourth proportional to 272,282.90, 408,424.35 and 172,555.70 is: 258,833.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,282.90 : 408,424.35 = 172,555.70 : x
  2. Step 2: Convert to fraction form
    272,282.90/408,424.35 = 172,555.70/x
  3. Step 3: Cross multiply
    272,282.90x = 408,424.35 × 172,555.70
  4. Step 4: Simplify right side
    272,282.90x = 70,475,949,611.30
  5. Step 5: Solve for x
    x = 70,475,949,611.30/272,282.90
  6. Step 6: Final answer
    x = 258,833.55

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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.