Home / 205,949.76-308,930.04-65,708.40

Finding the Fourth Proportional to 205,949.76, 308,930.04 and 65,708.40

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Solution

The fourth proportional to 205,949.76, 308,930.04 and 65,708.40 is: 98,564.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,949.76 : 308,930.04 = 65,708.40 : x
  2. Step 2: Convert to fraction form
    205,949.76/308,930.04 = 65,708.40/x
  3. Step 3: Cross multiply
    205,949.76x = 308,930.04 × 65,708.40
  4. Step 4: Simplify right side
    205,949.76x = 20,299,298,640.34
  5. Step 5: Solve for x
    x = 20,299,298,640.34/205,949.76
  6. Step 6: Final answer
    x = 98,564.32

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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.