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Finding the Fourth Proportional to 171,055.80, 256,842.90 and 131,657.40

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Solution

The fourth proportional to 171,055.80, 256,842.90 and 131,657.40 is: 197,685.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,055.80 : 256,842.90 = 131,657.40 : x
  2. Step 2: Convert to fraction form
    171,055.80/256,842.90 = 131,657.40/x
  3. Step 3: Cross multiply
    171,055.80x = 256,842.90 × 131,657.40
  4. Step 4: Simplify right side
    171,055.80x = 33,815,268,422.46
  5. Step 5: Solve for x
    x = 33,815,268,422.46/171,055.80
  6. Step 6: Final answer
    x = 197,685.60

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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.