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Finding the Fourth Proportional to 536,838.61, 804,667.42 and 221,123.29

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Solution

The fourth proportional to 536,838.61, 804,667.42 and 221,123.29 is: 331,441.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,838.61 : 804,667.42 = 221,123.29 : x
  2. Step 2: Convert to fraction form
    536,838.61/804,667.42 = 221,123.29/x
  3. Step 3: Cross multiply
    536,838.61x = 804,667.42 × 221,123.29
  4. Step 4: Simplify right side
    536,838.61x = 177,930,707,266.21
  5. Step 5: Solve for x
    x = 177,930,707,266.21/536,838.61
  6. Step 6: Final answer
    x = 331,441.71

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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.