Home / 217,386.10-325,839.76-163,906.60

Finding the Fourth Proportional to 217,386.10, 325,839.76 and 163,906.60

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Solution

The fourth proportional to 217,386.10, 325,839.76 and 163,906.60 is: 245,679.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,386.10 : 325,839.76 = 163,906.60 : x
  2. Step 2: Convert to fraction form
    217,386.10/325,839.76 = 163,906.60/x
  3. Step 3: Cross multiply
    217,386.10x = 325,839.76 × 163,906.60
  4. Step 4: Simplify right side
    217,386.10x = 53,407,288,520.89
  5. Step 5: Solve for x
    x = 53,407,288,520.89/217,386.10
  6. Step 6: Final answer
    x = 245,679.41

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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.