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Finding the Fourth Proportional to 329,014.60, 492,865.80 and 171,331.90

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Solution

The fourth proportional to 329,014.60, 492,865.80 and 171,331.90 is: 256,656.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,014.60 : 492,865.80 = 171,331.90 : x
  2. Step 2: Convert to fraction form
    329,014.60/492,865.80 = 171,331.90/x
  3. Step 3: Cross multiply
    329,014.60x = 492,865.80 × 171,331.90
  4. Step 4: Simplify right side
    329,014.60x = 84,443,633,959.02
  5. Step 5: Solve for x
    x = 84,443,633,959.02/329,014.60
  6. Step 6: Final answer
    x = 256,656.19

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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.