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Finding the Fourth Proportional to 339,308, 468,264.48 and 188,414.72

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Solution

The fourth proportional to 339,308, 468,264.48 and 188,414.72 is: 260,023.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,308 : 468,264.48 = 188,414.72 : x
  2. Step 2: Convert to fraction form
    339,308/468,264.48 = 188,414.72/x
  3. Step 3: Cross multiply
    339,308x = 468,264.48 × 188,414.72
  4. Step 4: Simplify right side
    339,308x = 88,227,920,885.15
  5. Step 5: Solve for x
    x = 88,227,920,885.15/339,308
  6. Step 6: Final answer
    x = 260,023.11

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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.