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Finding the Fourth Proportional to 343,293.60, 514,940.40 and 329,296.80

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Solution

The fourth proportional to 343,293.60, 514,940.40 and 329,296.80 is: 493,945.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,293.60 : 514,940.40 = 329,296.80 : x
  2. Step 2: Convert to fraction form
    343,293.60/514,940.40 = 329,296.80/x
  3. Step 3: Cross multiply
    343,293.60x = 514,940.40 × 329,296.80
  4. Step 4: Simplify right side
    343,293.60x = 169,568,225,910.72
  5. Step 5: Solve for x
    x = 169,568,225,910.72/343,293.60
  6. Step 6: Final answer
    x = 493,945.20

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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.