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Finding the Fourth Proportional to 515,034.46, 772,648.60 and 207,309.96

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Solution

The fourth proportional to 515,034.46, 772,648.60 and 207,309.96 is: 311,003.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,034.46 : 772,648.60 = 207,309.96 : x
  2. Step 2: Convert to fraction form
    515,034.46/772,648.60 = 207,309.96/x
  3. Step 3: Cross multiply
    515,034.46x = 772,648.60 × 207,309.96
  4. Step 4: Simplify right side
    515,034.46x = 160,177,750,360.06
  5. Step 5: Solve for x
    x = 160,177,750,360.06/515,034.46
  6. Step 6: Final answer
    x = 311,003.95

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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.