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Finding the Fourth Proportional to 218,884.78, 302,061.00 and 118,282.78

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Solution

The fourth proportional to 218,884.78, 302,061.00 and 118,282.78 is: 163,230.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,884.78 : 302,061.00 = 118,282.78 : x
  2. Step 2: Convert to fraction form
    218,884.78/302,061.00 = 118,282.78/x
  3. Step 3: Cross multiply
    218,884.78x = 302,061.00 × 118,282.78
  4. Step 4: Simplify right side
    218,884.78x = 35,728,614,965.38
  5. Step 5: Solve for x
    x = 35,728,614,965.38/218,884.78
  6. Step 6: Final answer
    x = 163,230.24

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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.