Home / 217,073.28-326,110.54-208,105.40

Finding the Fourth Proportional to 217,073.28, 326,110.54 and 208,105.40

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Solution

The fourth proportional to 217,073.28, 326,110.54 and 208,105.40 is: 312,638.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,073.28 : 326,110.54 = 208,105.40 : x
  2. Step 2: Convert to fraction form
    217,073.28/326,110.54 = 208,105.40/x
  3. Step 3: Cross multiply
    217,073.28x = 326,110.54 × 208,105.40
  4. Step 4: Simplify right side
    217,073.28x = 67,865,364,370.92
  5. Step 5: Solve for x
    x = 67,865,364,370.92/217,073.28
  6. Step 6: Final answer
    x = 312,638.04

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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.