Home / 204,620.10-306,930.15-64,421.70

Finding the Fourth Proportional to 204,620.10, 306,930.15 and 64,421.70

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Solution

The fourth proportional to 204,620.10, 306,930.15 and 64,421.70 is: 96,632.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,620.10 : 306,930.15 = 64,421.70 : x
  2. Step 2: Convert to fraction form
    204,620.10/306,930.15 = 64,421.70/x
  3. Step 3: Cross multiply
    204,620.10x = 306,930.15 × 64,421.70
  4. Step 4: Simplify right side
    204,620.10x = 19,772,962,044.26
  5. Step 5: Solve for x
    x = 19,772,962,044.26/204,620.10
  6. Step 6: Final answer
    x = 96,632.55

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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.