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Finding the Fourth Proportional to 429,634.17, 644,633.51 and 229,902.75

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Solution

The fourth proportional to 429,634.17, 644,633.51 and 229,902.75 is: 344,951.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,634.17 : 644,633.51 = 229,902.75 : x
  2. Step 2: Convert to fraction form
    429,634.17/644,633.51 = 229,902.75/x
  3. Step 3: Cross multiply
    429,634.17x = 644,633.51 × 229,902.75
  4. Step 4: Simplify right side
    429,634.17x = 148,203,015,541.64
  5. Step 5: Solve for x
    x = 148,203,015,541.64/429,634.17
  6. Step 6: Final answer
    x = 344,951.65

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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.