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Finding the Fourth Proportional to 343,360.60, 515,040.90 and 329,363.80

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Solution

The fourth proportional to 343,360.60, 515,040.90 and 329,363.80 is: 494,045.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,360.60 : 515,040.90 = 329,363.80 : x
  2. Step 2: Convert to fraction form
    343,360.60/515,040.90 = 329,363.80/x
  3. Step 3: Cross multiply
    343,360.60x = 515,040.90 × 329,363.80
  4. Step 4: Simplify right side
    343,360.60x = 169,635,827,979.42
  5. Step 5: Solve for x
    x = 169,635,827,979.42/343,360.60
  6. Step 6: Final answer
    x = 494,045.70

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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.