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Finding the Fourth Proportional to 343,398.07, 515,416.05 and 175,044.88

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Solution

The fourth proportional to 343,398.07, 515,416.05 and 175,044.88 is: 262,729.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,398.07 : 515,416.05 = 175,044.88 : x
  2. Step 2: Convert to fraction form
    343,398.07/515,416.05 = 175,044.88/x
  3. Step 3: Cross multiply
    343,398.07x = 515,416.05 × 175,044.88
  4. Step 4: Simplify right side
    343,398.07x = 90,220,940,622.32
  5. Step 5: Solve for x
    x = 90,220,940,622.32/343,398.07
  6. Step 6: Final answer
    x = 262,729.90

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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.