Home / 382,921.20-574,381.92-172,313.10

Finding the Fourth Proportional to 382,921.20, 574,381.92 and 172,313.10

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Solution

The fourth proportional to 382,921.20, 574,381.92 and 172,313.10 is: 258,469.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,921.20 : 574,381.92 = 172,313.10 : x
  2. Step 2: Convert to fraction form
    382,921.20/574,381.92 = 172,313.10/x
  3. Step 3: Cross multiply
    382,921.20x = 574,381.92 × 172,313.10
  4. Step 4: Simplify right side
    382,921.20x = 98,973,529,219.15
  5. Step 5: Solve for x
    x = 98,973,529,219.15/382,921.20
  6. Step 6: Final answer
    x = 258,469.70

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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.