Home / 217,740.24-326,648.61-99,423.54

Finding the Fourth Proportional to 217,740.24, 326,648.61 and 99,423.54

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Solution

The fourth proportional to 217,740.24, 326,648.61 and 99,423.54 is: 149,152.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,740.24 : 326,648.61 = 99,423.54 : x
  2. Step 2: Convert to fraction form
    217,740.24/326,648.61 = 99,423.54/x
  3. Step 3: Cross multiply
    217,740.24x = 326,648.61 × 99,423.54
  4. Step 4: Simplify right side
    217,740.24x = 32,476,561,142.28
  5. Step 5: Solve for x
    x = 32,476,561,142.28/217,740.24
  6. Step 6: Final answer
    x = 149,152.78

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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.