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Finding the Fourth Proportional to 264,857.40, 397,298.34 and 87,379.92

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Solution

The fourth proportional to 264,857.40, 397,298.34 and 87,379.92 is: 131,073.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,857.40 : 397,298.34 = 87,379.92 : x
  2. Step 2: Convert to fraction form
    264,857.40/397,298.34 = 87,379.92/x
  3. Step 3: Cross multiply
    264,857.40x = 397,298.34 × 87,379.92
  4. Step 4: Simplify right side
    264,857.40x = 34,715,897,165.33
  5. Step 5: Solve for x
    x = 34,715,897,165.33/264,857.40
  6. Step 6: Final answer
    x = 131,073.92

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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.