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Finding the Fourth Proportional to 171,436.80, 256,717.80 and 136,444.80

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Solution

The fourth proportional to 171,436.80, 256,717.80 and 136,444.80 is: 204,319.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,436.80 : 256,717.80 = 136,444.80 : x
  2. Step 2: Convert to fraction form
    171,436.80/256,717.80 = 136,444.80/x
  3. Step 3: Cross multiply
    171,436.80x = 256,717.80 × 136,444.80
  4. Step 4: Simplify right side
    171,436.80x = 35,027,808,877.44
  5. Step 5: Solve for x
    x = 35,027,808,877.44/171,436.80
  6. Step 6: Final answer
    x = 204,319.08

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1.5x scale

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.