Home / 246,139.28-339,682.20-138,713.84

Finding the Fourth Proportional to 246,139.28, 339,682.20 and 138,713.84

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Solution

The fourth proportional to 246,139.28, 339,682.20 and 138,713.84 is: 191,430.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,139.28 : 339,682.20 = 138,713.84 : x
  2. Step 2: Convert to fraction form
    246,139.28/339,682.20 = 138,713.84/x
  3. Step 3: Cross multiply
    246,139.28x = 339,682.20 × 138,713.84
  4. Step 4: Simplify right side
    246,139.28x = 47,118,622,341.65
  5. Step 5: Solve for x
    x = 47,118,622,341.65/246,139.28
  6. Step 6: Final answer
    x = 191,430.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.