Home / 265,454.28-397,961.02-105,431.49

Finding the Fourth Proportional to 265,454.28, 397,961.02 and 105,431.49

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Solution

The fourth proportional to 265,454.28, 397,961.02 and 105,431.49 is: 158,059.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,454.28 : 397,961.02 = 105,431.49 : x
  2. Step 2: Convert to fraction form
    265,454.28/397,961.02 = 105,431.49/x
  3. Step 3: Cross multiply
    265,454.28x = 397,961.02 × 105,431.49
  4. Step 4: Simplify right side
    265,454.28x = 41,957,622,839.26
  5. Step 5: Solve for x
    x = 41,957,622,839.26/265,454.28
  6. Step 6: Final answer
    x = 158,059.70

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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.