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Finding the Fourth Proportional to 343,352.59, 515,006.32 and 118,660.75

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Solution

The fourth proportional to 343,352.59, 515,006.32 and 118,660.75 is: 177,983.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,352.59 : 515,006.32 = 118,660.75 : x
  2. Step 2: Convert to fraction form
    343,352.59/515,006.32 = 118,660.75/x
  3. Step 3: Cross multiply
    343,352.59x = 515,006.32 × 118,660.75
  4. Step 4: Simplify right side
    343,352.59x = 61,111,036,185.94
  5. Step 5: Solve for x
    x = 61,111,036,185.94/343,352.59
  6. Step 6: Final answer
    x = 177,983.33

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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.