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Finding the Fourth Proportional to 256,546.88, 354,133.68 and 229,641.92

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Solution

The fourth proportional to 256,546.88, 354,133.68 and 229,641.92 is: 316,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,546.88 : 354,133.68 = 229,641.92 : x
  2. Step 2: Convert to fraction form
    256,546.88/354,133.68 = 229,641.92/x
  3. Step 3: Cross multiply
    256,546.88x = 354,133.68 × 229,641.92
  4. Step 4: Simplify right side
    256,546.88x = 81,323,938,211.87
  5. Step 5: Solve for x
    x = 81,323,938,211.87/256,546.88
  6. Step 6: Final answer
    x = 316,994.45

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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.