Home / 217,581.46-326,388-91,094.50

Finding the Fourth Proportional to 217,581.46, 326,388 and 91,094.50

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Solution

The fourth proportional to 217,581.46, 326,388 and 91,094.50 is: 136,648.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,581.46 : 326,388 = 91,094.50 : x
  2. Step 2: Convert to fraction form
    217,581.46/326,388 = 91,094.50/x
  3. Step 3: Cross multiply
    217,581.46x = 326,388 × 91,094.50
  4. Step 4: Simplify right side
    217,581.46x = 29,732,151,666
  5. Step 5: Solve for x
    x = 29,732,151,666/217,581.46
  6. Step 6: Final answer
    x = 136,648.37

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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.