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Finding the Fourth Proportional to 636,960.80, 955,287.48 and 187,559.48

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Solution

The fourth proportional to 636,960.80, 955,287.48 and 187,559.48 is: 281,293.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,960.80 : 955,287.48 = 187,559.48 : x
  2. Step 2: Convert to fraction form
    636,960.80/955,287.48 = 187,559.48/x
  3. Step 3: Cross multiply
    636,960.80x = 955,287.48 × 187,559.48
  4. Step 4: Simplify right side
    636,960.80x = 179,173,222,999.31
  5. Step 5: Solve for x
    x = 179,173,222,999.31/636,960.80
  6. Step 6: Final answer
    x = 281,293.96

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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.