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Finding the Fourth Proportional to 343,483.80, 515,127.24 and 115,754.62

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Solution

The fourth proportional to 343,483.80, 515,127.24 and 115,754.62 is: 173,598.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,483.80 : 515,127.24 = 115,754.62 : x
  2. Step 2: Convert to fraction form
    343,483.80/515,127.24 = 115,754.62/x
  3. Step 3: Cross multiply
    343,483.80x = 515,127.24 × 115,754.62
  4. Step 4: Simplify right side
    343,483.80x = 59,628,357,917.85
  5. Step 5: Solve for x
    x = 59,628,357,917.85/343,483.80
  6. Step 6: Final answer
    x = 173,598.75

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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.