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Finding the Fourth Proportional to 291,499.52, 402,258.84 and 164,186.96

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Solution

The fourth proportional to 291,499.52, 402,258.84 and 164,186.96 is: 226,572.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,499.52 : 402,258.84 = 164,186.96 : x
  2. Step 2: Convert to fraction form
    291,499.52/402,258.84 = 164,186.96/x
  3. Step 3: Cross multiply
    291,499.52x = 402,258.84 × 164,186.96
  4. Step 4: Simplify right side
    291,499.52x = 66,045,656,072.73
  5. Step 5: Solve for x
    x = 66,045,656,072.73/291,499.52
  6. Step 6: Final answer
    x = 226,572.09

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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.