Home / 272,621.40-408,932.10-172,894.20

Finding the Fourth Proportional to 272,621.40, 408,932.10 and 172,894.20

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Solution

The fourth proportional to 272,621.40, 408,932.10 and 172,894.20 is: 259,341.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,621.40 : 408,932.10 = 172,894.20 : x
  2. Step 2: Convert to fraction form
    272,621.40/408,932.10 = 172,894.20/x
  3. Step 3: Cross multiply
    272,621.40x = 408,932.10 × 172,894.20
  4. Step 4: Simplify right side
    272,621.40x = 70,701,988,283.82
  5. Step 5: Solve for x
    x = 70,701,988,283.82/272,621.40
  6. Step 6: Final answer
    x = 259,341.30

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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.