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Finding the Fourth Proportional to 223,282.67, 308,133.59 and 121,310.15

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Solution

The fourth proportional to 223,282.67, 308,133.59 and 121,310.15 is: 167,409.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,282.67 : 308,133.59 = 121,310.15 : x
  2. Step 2: Convert to fraction form
    223,282.67/308,133.59 = 121,310.15/x
  3. Step 3: Cross multiply
    223,282.67x = 308,133.59 × 121,310.15
  4. Step 4: Simplify right side
    223,282.67x = 37,379,732,186.72
  5. Step 5: Solve for x
    x = 37,379,732,186.72/223,282.67
  6. Step 6: Final answer
    x = 167,409.91

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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.