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Finding the Fourth Proportional to 515,042.80, 772,564.20 and 235,106.80

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Solution

The fourth proportional to 515,042.80, 772,564.20 and 235,106.80 is: 352,660.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,042.80 : 772,564.20 = 235,106.80 : x
  2. Step 2: Convert to fraction form
    515,042.80/772,564.20 = 235,106.80/x
  3. Step 3: Cross multiply
    515,042.80x = 772,564.20 × 235,106.80
  4. Step 4: Simplify right side
    515,042.80x = 181,635,096,856.56
  5. Step 5: Solve for x
    x = 181,635,096,856.56/515,042.80
  6. Step 6: Final answer
    x = 352,660.20

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Similar ratio
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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.