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Finding the Fourth Proportional to 221,719.68, 306,046.08 and 176,480.64

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Solution

The fourth proportional to 221,719.68, 306,046.08 and 176,480.64 is: 243,601.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,719.68 : 306,046.08 = 176,480.64 : x
  2. Step 2: Convert to fraction form
    221,719.68/306,046.08 = 176,480.64/x
  3. Step 3: Cross multiply
    221,719.68x = 306,046.08 × 176,480.64
  4. Step 4: Simplify right side
    221,719.68x = 54,011,208,067.89
  5. Step 5: Solve for x
    x = 54,011,208,067.89/221,719.68
  6. Step 6: Final answer
    x = 243,601.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.