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Finding the Fourth Proportional to 385,773.19, 532,348.50 and 213,679.54

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Solution

The fourth proportional to 385,773.19, 532,348.50 and 213,679.54 is: 294,867.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,773.19 : 532,348.50 = 213,679.54 : x
  2. Step 2: Convert to fraction form
    385,773.19/532,348.50 = 213,679.54/x
  3. Step 3: Cross multiply
    385,773.19x = 532,348.50 × 213,679.54
  4. Step 4: Simplify right side
    385,773.19x = 113,751,982,599.69
  5. Step 5: Solve for x
    x = 113,751,982,599.69/385,773.19
  6. Step 6: Final answer
    x = 294,867.52

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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.