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Finding the Fourth Proportional to 226,258.62, 339,386 and 91,320.62

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Solution

The fourth proportional to 226,258.62, 339,386 and 91,320.62 is: 136,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,258.62 : 339,386 = 91,320.62 : x
  2. Step 2: Convert to fraction form
    226,258.62/339,386 = 91,320.62/x
  3. Step 3: Cross multiply
    226,258.62x = 339,386 × 91,320.62
  4. Step 4: Simplify right side
    226,258.62x = 30,992,939,939.32
  5. Step 5: Solve for x
    x = 30,992,939,939.32/226,258.62
  6. Step 6: Final answer
    x = 136,980.15

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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.