Home / 260,202.30-390,376.89-73,215.42

Finding the Fourth Proportional to 260,202.30, 390,376.89 and 73,215.42

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Solution

The fourth proportional to 260,202.30, 390,376.89 and 73,215.42 is: 109,843.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,202.30 : 390,376.89 = 73,215.42 : x
  2. Step 2: Convert to fraction form
    260,202.30/390,376.89 = 73,215.42/x
  3. Step 3: Cross multiply
    260,202.30x = 390,376.89 × 73,215.42
  4. Step 4: Simplify right side
    260,202.30x = 28,581,607,959.64
  5. Step 5: Solve for x
    x = 28,581,607,959.64/260,202.30
  6. Step 6: Final answer
    x = 109,843.79

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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.