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Finding the Fourth Proportional to 329,013.60, 492,864.30 and 171,330.90

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Solution

The fourth proportional to 329,013.60, 492,864.30 and 171,330.90 is: 256,654.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,013.60 : 492,864.30 = 171,330.90 : x
  2. Step 2: Convert to fraction form
    329,013.60/492,864.30 = 171,330.90/x
  3. Step 3: Cross multiply
    329,013.60x = 492,864.30 × 171,330.90
  4. Step 4: Simplify right side
    329,013.60x = 84,442,884,096.87
  5. Step 5: Solve for x
    x = 84,442,884,096.87/329,013.60
  6. Step 6: Final answer
    x = 256,654.69

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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.