Home / 261,621.25-392,490.38-95,409.25

Finding the Fourth Proportional to 261,621.25, 392,490.38 and 95,409.25

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Solution

The fourth proportional to 261,621.25, 392,490.38 and 95,409.25 is: 143,135.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,621.25 : 392,490.38 = 95,409.25 : x
  2. Step 2: Convert to fraction form
    261,621.25/392,490.38 = 95,409.25/x
  3. Step 3: Cross multiply
    261,621.25x = 392,490.38 × 95,409.25
  4. Step 4: Simplify right side
    261,621.25x = 37,447,212,310.97
  5. Step 5: Solve for x
    x = 37,447,212,310.97/261,621.25
  6. Step 6: Final answer
    x = 143,135.21

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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.