Home / 261,464.35-392,151.36-69,340.12

Finding the Fourth Proportional to 261,464.35, 392,151.36 and 69,340.12

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Solution

The fourth proportional to 261,464.35, 392,151.36 and 69,340.12 is: 103,998.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,464.35 : 392,151.36 = 69,340.12 : x
  2. Step 2: Convert to fraction form
    261,464.35/392,151.36 = 69,340.12/x
  3. Step 3: Cross multiply
    261,464.35x = 392,151.36 × 69,340.12
  4. Step 4: Simplify right side
    261,464.35x = 27,191,822,360.56
  5. Step 5: Solve for x
    x = 27,191,822,360.56/261,464.35
  6. Step 6: Final answer
    x = 103,998.20

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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.