Home / 351,989.12-527,999.03-172,225.90

Finding the Fourth Proportional to 351,989.12, 527,999.03 and 172,225.90

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Solution

The fourth proportional to 351,989.12, 527,999.03 and 172,225.90 is: 258,346.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,989.12 : 527,999.03 = 172,225.90 : x
  2. Step 2: Convert to fraction form
    351,989.12/527,999.03 = 172,225.90/x
  3. Step 3: Cross multiply
    351,989.12x = 527,999.03 × 172,225.90
  4. Step 4: Simplify right side
    351,989.12x = 90,935,109,441.23
  5. Step 5: Solve for x
    x = 90,935,109,441.23/351,989.12
  6. Step 6: Final answer
    x = 258,346.36

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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.