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Finding the Fourth Proportional to 256,672.80, 354,196.80 and 141,952.50

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Solution

The fourth proportional to 256,672.80, 354,196.80 and 141,952.50 is: 195,888.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,672.80 : 354,196.80 = 141,952.50 : x
  2. Step 2: Convert to fraction form
    256,672.80/354,196.80 = 141,952.50/x
  3. Step 3: Cross multiply
    256,672.80x = 354,196.80 × 141,952.50
  4. Step 4: Simplify right side
    256,672.80x = 50,279,121,252
  5. Step 5: Solve for x
    x = 50,279,121,252/256,672.80
  6. Step 6: Final answer
    x = 195,888.00

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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.