Home / 260,212.28-390,449.58-102,553.88

Finding the Fourth Proportional to 260,212.28, 390,449.58 and 102,553.88

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Solution

The fourth proportional to 260,212.28, 390,449.58 and 102,553.88 is: 153,882.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,212.28 : 390,449.58 = 102,553.88 : x
  2. Step 2: Convert to fraction form
    260,212.28/390,449.58 = 102,553.88/x
  3. Step 3: Cross multiply
    260,212.28x = 390,449.58 × 102,553.88
  4. Step 4: Simplify right side
    260,212.28x = 40,042,119,373.37
  5. Step 5: Solve for x
    x = 40,042,119,373.37/260,212.28
  6. Step 6: Final answer
    x = 153,882.51

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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.