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Finding the Fourth Proportional to 205,353.60, 307,569.60 and 168,489.60

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Solution

The fourth proportional to 205,353.60, 307,569.60 and 168,489.60 is: 252,356.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,353.60 : 307,569.60 = 168,489.60 : x
  2. Step 2: Convert to fraction form
    205,353.60/307,569.60 = 168,489.60/x
  3. Step 3: Cross multiply
    205,353.60x = 307,569.60 × 168,489.60
  4. Step 4: Simplify right side
    205,353.60x = 51,822,278,876.16
  5. Step 5: Solve for x
    x = 51,822,278,876.16/205,353.60
  6. Step 6: Final answer
    x = 252,356.32

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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.