Home / 217,590.56-326,074.80-123,902.72

Finding the Fourth Proportional to 217,590.56, 326,074.80 and 123,902.72

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Solution

The fourth proportional to 217,590.56, 326,074.80 and 123,902.72 is: 185,676.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,590.56 : 326,074.80 = 123,902.72 : x
  2. Step 2: Convert to fraction form
    217,590.56/326,074.80 = 123,902.72/x
  3. Step 3: Cross multiply
    217,590.56x = 326,074.80 × 123,902.72
  4. Step 4: Simplify right side
    217,590.56x = 40,401,554,643.46
  5. Step 5: Solve for x
    x = 40,401,554,643.46/217,590.56
  6. Step 6: Final answer
    x = 185,676.96

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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.