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Finding the Fourth Proportional to 245,092.80, 367,640.64 and 87,327.36

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Solution

The fourth proportional to 245,092.80, 367,640.64 and 87,327.36 is: 130,991.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,092.80 : 367,640.64 = 87,327.36 : x
  2. Step 2: Convert to fraction form
    245,092.80/367,640.64 = 87,327.36/x
  3. Step 3: Cross multiply
    245,092.80x = 367,640.64 × 87,327.36
  4. Step 4: Simplify right side
    245,092.80x = 32,105,086,519.91
  5. Step 5: Solve for x
    x = 32,105,086,519.91/245,092.80
  6. Step 6: Final answer
    x = 130,991.55

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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.