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Finding the Fourth Proportional to 256,550.88, 354,139.20 and 229,645.92

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Solution

The fourth proportional to 256,550.88, 354,139.20 and 229,645.92 is: 316,999.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,550.88 : 354,139.20 = 229,645.92 : x
  2. Step 2: Convert to fraction form
    256,550.88/354,139.20 = 229,645.92/x
  3. Step 3: Cross multiply
    256,550.88x = 354,139.20 × 229,645.92
  4. Step 4: Simplify right side
    256,550.88x = 81,326,622,392.06
  5. Step 5: Solve for x
    x = 81,326,622,392.06/256,550.88
  6. Step 6: Final answer
    x = 316,999.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.