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Finding the Fourth Proportional to 380,854.60, 571,283.94 and 114,613.30

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Solution

The fourth proportional to 380,854.60, 571,283.94 and 114,613.30 is: 171,920.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,854.60 : 571,283.94 = 114,613.30 : x
  2. Step 2: Convert to fraction form
    380,854.60/571,283.94 = 114,613.30/x
  3. Step 3: Cross multiply
    380,854.60x = 571,283.94 × 114,613.30
  4. Step 4: Simplify right side
    380,854.60x = 65,476,737,600.40
  5. Step 5: Solve for x
    x = 65,476,737,600.40/380,854.60
  6. Step 6: Final answer
    x = 171,920.56

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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.