Home / 326,766.15-490,149.61-102,127.76

Finding the Fourth Proportional to 326,766.15, 490,149.61 and 102,127.76

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Solution

The fourth proportional to 326,766.15, 490,149.61 and 102,127.76 is: 153,191.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,766.15 : 490,149.61 = 102,127.76 : x
  2. Step 2: Convert to fraction form
    326,766.15/490,149.61 = 102,127.76/x
  3. Step 3: Cross multiply
    326,766.15x = 490,149.61 × 102,127.76
  4. Step 4: Simplify right side
    326,766.15x = 50,057,881,734.17
  5. Step 5: Solve for x
    x = 50,057,881,734.17/326,766.15
  6. Step 6: Final answer
    x = 153,191.76

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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.