Home / 217,607.46-326,306.20-91,213.77

Finding the Fourth Proportional to 217,607.46, 326,306.20 and 91,213.77

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Solution

The fourth proportional to 217,607.46, 326,306.20 and 91,213.77 is: 136,776.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,607.46 : 326,306.20 = 91,213.77 : x
  2. Step 2: Convert to fraction form
    217,607.46/326,306.20 = 91,213.77/x
  3. Step 3: Cross multiply
    217,607.46x = 326,306.20 × 91,213.77
  4. Step 4: Simplify right side
    217,607.46x = 29,763,617,447.16
  5. Step 5: Solve for x
    x = 29,763,617,447.16/217,607.46
  6. Step 6: Final answer
    x = 136,776.64

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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.