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Finding the Fourth Proportional to 343,625.44, 515,263.20 and 133,323.52

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Solution

The fourth proportional to 343,625.44, 515,263.20 and 133,323.52 is: 199,917.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,625.44 : 515,263.20 = 133,323.52 : x
  2. Step 2: Convert to fraction form
    343,625.44/515,263.20 = 133,323.52/x
  3. Step 3: Cross multiply
    343,625.44x = 515,263.20 × 133,323.52
  4. Step 4: Simplify right side
    343,625.44x = 68,696,703,550.46
  5. Step 5: Solve for x
    x = 68,696,703,550.46/343,625.44
  6. Step 6: Final answer
    x = 199,917.40

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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.