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Finding the Fourth Proportional to 343,108.80, 515,246.40 and 254,462.40

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Solution

The fourth proportional to 343,108.80, 515,246.40 and 254,462.40 is: 382,126.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,108.80 : 515,246.40 = 254,462.40 : x
  2. Step 2: Convert to fraction form
    343,108.80/515,246.40 = 254,462.40/x
  3. Step 3: Cross multiply
    343,108.80x = 515,246.40 × 254,462.40
  4. Step 4: Simplify right side
    343,108.80x = 131,110,835,535.36
  5. Step 5: Solve for x
    x = 131,110,835,535.36/343,108.80
  6. Step 6: Final answer
    x = 382,126.12

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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.