Home / 382,857.12-574,245.36-102,402.72

Finding the Fourth Proportional to 382,857.12, 574,245.36 and 102,402.72

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Solution

The fourth proportional to 382,857.12, 574,245.36 and 102,402.72 is: 153,593.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,857.12 : 574,245.36 = 102,402.72 : x
  2. Step 2: Convert to fraction form
    382,857.12/574,245.36 = 102,402.72/x
  3. Step 3: Cross multiply
    382,857.12x = 574,245.36 × 102,402.72
  4. Step 4: Simplify right side
    382,857.12x = 58,804,286,811.38
  5. Step 5: Solve for x
    x = 58,804,286,811.38/382,857.12
  6. Step 6: Final answer
    x = 153,593.30

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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.