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Finding the Fourth Proportional to 217,008.83, 325,510.81 and 76,734.65

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Solution

The fourth proportional to 217,008.83, 325,510.81 and 76,734.65 is: 115,101.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,008.83 : 325,510.81 = 76,734.65 : x
  2. Step 2: Convert to fraction form
    217,008.83/325,510.81 = 76,734.65/x
  3. Step 3: Cross multiply
    217,008.83x = 325,510.81 × 76,734.65
  4. Step 4: Simplify right side
    217,008.83x = 24,977,958,076.57
  5. Step 5: Solve for x
    x = 24,977,958,076.57/217,008.83
  6. Step 6: Final answer
    x = 115,101.11

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1.5x scale

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.