Home / 261,419.10-392,258.37-103,644.06

Finding the Fourth Proportional to 261,419.10, 392,258.37 and 103,644.06

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Solution

The fourth proportional to 261,419.10, 392,258.37 and 103,644.06 is: 155,517.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,419.10 : 392,258.37 = 103,644.06 : x
  2. Step 2: Convert to fraction form
    261,419.10/392,258.37 = 103,644.06/x
  3. Step 3: Cross multiply
    261,419.10x = 392,258.37 × 103,644.06
  4. Step 4: Simplify right side
    261,419.10x = 40,655,250,035.78
  5. Step 5: Solve for x
    x = 40,655,250,035.78/261,419.10
  6. Step 6: Final answer
    x = 155,517.52

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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.