Home / 217,590.57-326,161.31-91,304.15

Finding the Fourth Proportional to 217,590.57, 326,161.31 and 91,304.15

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Solution

The fourth proportional to 217,590.57, 326,161.31 and 91,304.15 is: 136,861.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,590.57 : 326,161.31 = 91,304.15 : x
  2. Step 2: Convert to fraction form
    217,590.57/326,161.31 = 91,304.15/x
  3. Step 3: Cross multiply
    217,590.57x = 326,161.31 × 91,304.15
  4. Step 4: Simplify right side
    217,590.57x = 29,779,879,085.11
  5. Step 5: Solve for x
    x = 29,779,879,085.11/217,590.57
  6. Step 6: Final answer
    x = 136,861.99

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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.