Home / 343,711.25-515,443.85-119,011.35

Finding the Fourth Proportional to 343,711.25, 515,443.85 and 119,011.35

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Solution

The fourth proportional to 343,711.25, 515,443.85 and 119,011.35 is: 178,474.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,711.25 : 515,443.85 = 119,011.35 : x
  2. Step 2: Convert to fraction form
    343,711.25/515,443.85 = 119,011.35/x
  3. Step 3: Cross multiply
    343,711.25x = 515,443.85 × 119,011.35
  4. Step 4: Simplify right side
    343,711.25x = 61,343,670,221.85
  5. Step 5: Solve for x
    x = 61,343,670,221.85/343,711.25
  6. Step 6: Final answer
    x = 178,474.43

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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.