Home / 343,821.27-515,732.10-119,181.75

Finding the Fourth Proportional to 343,821.27, 515,732.10 and 119,181.75

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Solution

The fourth proportional to 343,821.27, 515,732.10 and 119,181.75 is: 178,772.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,821.27 : 515,732.10 = 119,181.75 : x
  2. Step 2: Convert to fraction form
    343,821.27/515,732.10 = 119,181.75/x
  3. Step 3: Cross multiply
    343,821.27x = 515,732.10 × 119,181.75
  4. Step 4: Simplify right side
    343,821.27x = 61,465,854,209.18
  5. Step 5: Solve for x
    x = 61,465,854,209.18/343,821.27
  6. Step 6: Final answer
    x = 178,772.69

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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.