Home / 260,275.72-390,151.14-197,815

Finding the Fourth Proportional to 260,275.72, 390,151.14 and 197,815

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Solution

The fourth proportional to 260,275.72, 390,151.14 and 197,815 is: 296,523.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,275.72 : 390,151.14 = 197,815 : x
  2. Step 2: Convert to fraction form
    260,275.72/390,151.14 = 197,815/x
  3. Step 3: Cross multiply
    260,275.72x = 390,151.14 × 197,815
  4. Step 4: Simplify right side
    260,275.72x = 77,177,747,759.10
  5. Step 5: Solve for x
    x = 77,177,747,759.10/260,275.72
  6. Step 6: Final answer
    x = 296,523.04

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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.