Home / 238,397.11-357,556.34-78,475.12

Finding the Fourth Proportional to 238,397.11, 357,556.34 and 78,475.12

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Solution

The fourth proportional to 238,397.11, 357,556.34 and 78,475.12 is: 117,699.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,397.11 : 357,556.34 = 78,475.12 : x
  2. Step 2: Convert to fraction form
    238,397.11/357,556.34 = 78,475.12/x
  3. Step 3: Cross multiply
    238,397.11x = 357,556.34 × 78,475.12
  4. Step 4: Simplify right side
    238,397.11x = 28,059,275,990.56
  5. Step 5: Solve for x
    x = 28,059,275,990.56/238,397.11
  6. Step 6: Final answer
    x = 117,699.73

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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.