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Finding the Fourth Proportional to 205,576.60, 308,219.10 and 93,310.60

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Solution

The fourth proportional to 205,576.60, 308,219.10 and 93,310.60 is: 139,899.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,576.60 : 308,219.10 = 93,310.60 : x
  2. Step 2: Convert to fraction form
    205,576.60/308,219.10 = 93,310.60/x
  3. Step 3: Cross multiply
    205,576.60x = 308,219.10 × 93,310.60
  4. Step 4: Simplify right side
    205,576.60x = 28,760,109,152.46
  5. Step 5: Solve for x
    x = 28,760,109,152.46/205,576.60
  6. Step 6: Final answer
    x = 139,899.72

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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.