Home / 268,650.27-402,975.30-79,110.66

Finding the Fourth Proportional to 268,650.27, 402,975.30 and 79,110.66

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Solution

The fourth proportional to 268,650.27, 402,975.30 and 79,110.66 is: 118,665.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,650.27 : 402,975.30 = 79,110.66 : x
  2. Step 2: Convert to fraction form
    268,650.27/402,975.30 = 79,110.66/x
  3. Step 3: Cross multiply
    268,650.27x = 402,975.30 × 79,110.66
  4. Step 4: Simplify right side
    268,650.27x = 31,879,641,946.70
  5. Step 5: Solve for x
    x = 31,879,641,946.70/268,650.27
  6. Step 6: Final answer
    x = 118,665.96

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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.