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Finding the Fourth Proportional to 202,602.09, 279,589.80 and 111,964.35

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Solution

The fourth proportional to 202,602.09, 279,589.80 and 111,964.35 is: 154,510.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,602.09 : 279,589.80 = 111,964.35 : x
  2. Step 2: Convert to fraction form
    202,602.09/279,589.80 = 111,964.35/x
  3. Step 3: Cross multiply
    202,602.09x = 279,589.80 × 111,964.35
  4. Step 4: Simplify right side
    202,602.09x = 31,304,090,223.63
  5. Step 5: Solve for x
    x = 31,304,090,223.63/202,602.09
  6. Step 6: Final answer
    x = 154,510.20

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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.