Home / 261,736.32-392,643.36-84,197.28

Finding the Fourth Proportional to 261,736.32, 392,643.36 and 84,197.28

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Solution

The fourth proportional to 261,736.32, 392,643.36 and 84,197.28 is: 126,308.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,736.32 : 392,643.36 = 84,197.28 : x
  2. Step 2: Convert to fraction form
    261,736.32/392,643.36 = 84,197.28/x
  3. Step 3: Cross multiply
    261,736.32x = 392,643.36 × 84,197.28
  4. Step 4: Simplify right side
    261,736.32x = 33,059,502,922.06
  5. Step 5: Solve for x
    x = 33,059,502,922.06/261,736.32
  6. Step 6: Final answer
    x = 126,308.43

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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.