Home / 217,638.40-326,449.98-89,550.06

Finding the Fourth Proportional to 217,638.40, 326,449.98 and 89,550.06

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Solution

The fourth proportional to 217,638.40, 326,449.98 and 89,550.06 is: 134,321.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,638.40 : 326,449.98 = 89,550.06 : x
  2. Step 2: Convert to fraction form
    217,638.40/326,449.98 = 89,550.06/x
  3. Step 3: Cross multiply
    217,638.40x = 326,449.98 × 89,550.06
  4. Step 4: Simplify right side
    217,638.40x = 29,233,615,296.00
  5. Step 5: Solve for x
    x = 29,233,615,296.00/217,638.40
  6. Step 6: Final answer
    x = 134,321.95

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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.