Home / 217,815.12-326,569.08-84,584.40

Finding the Fourth Proportional to 217,815.12, 326,569.08 and 84,584.40

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Solution

The fourth proportional to 217,815.12, 326,569.08 and 84,584.40 is: 126,816.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,815.12 : 326,569.08 = 84,584.40 : x
  2. Step 2: Convert to fraction form
    217,815.12/326,569.08 = 84,584.40/x
  3. Step 3: Cross multiply
    217,815.12x = 326,569.08 × 84,584.40
  4. Step 4: Simplify right side
    217,815.12x = 27,622,649,690.35
  5. Step 5: Solve for x
    x = 27,622,649,690.35/217,815.12
  6. Step 6: Final answer
    x = 126,816.95

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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.