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Finding the Fourth Proportional to 343,976.88, 515,926.40 and 119,295.84

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Solution

The fourth proportional to 343,976.88, 515,926.40 and 119,295.84 is: 178,930.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,976.88 : 515,926.40 = 119,295.84 : x
  2. Step 2: Convert to fraction form
    343,976.88/515,926.40 = 119,295.84/x
  3. Step 3: Cross multiply
    343,976.88x = 515,926.40 × 119,295.84
  4. Step 4: Simplify right side
    343,976.88x = 61,547,873,266.18
  5. Step 5: Solve for x
    x = 61,547,873,266.18/343,976.88
  6. Step 6: Final answer
    x = 178,930.26

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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.