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Finding the Fourth Proportional to 223,450.88, 308,379.36 and 127,987.52

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Solution

The fourth proportional to 223,450.88, 308,379.36 and 127,987.52 is: 176,632.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,450.88 : 308,379.36 = 127,987.52 : x
  2. Step 2: Convert to fraction form
    223,450.88/308,379.36 = 127,987.52/x
  3. Step 3: Cross multiply
    223,450.88x = 308,379.36 × 127,987.52
  4. Step 4: Simplify right side
    223,450.88x = 39,468,709,505.59
  5. Step 5: Solve for x
    x = 39,468,709,505.59/223,450.88
  6. Step 6: Final answer
    x = 176,632.60

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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.