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Finding the Fourth Proportional to 171,162.60, 256,398.30 and 118,631.40

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Solution

The fourth proportional to 171,162.60, 256,398.30 and 118,631.40 is: 177,707.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,162.60 : 256,398.30 = 118,631.40 : x
  2. Step 2: Convert to fraction form
    171,162.60/256,398.30 = 118,631.40/x
  3. Step 3: Cross multiply
    171,162.60x = 256,398.30 × 118,631.40
  4. Step 4: Simplify right side
    171,162.60x = 30,416,889,286.62
  5. Step 5: Solve for x
    x = 30,416,889,286.62/171,162.60
  6. Step 6: Final answer
    x = 177,707.57

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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.