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Finding the Fourth Proportional to 202,286.88, 279,065.52 and 121,667.04

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Solution

The fourth proportional to 202,286.88, 279,065.52 and 121,667.04 is: 167,846.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,286.88 : 279,065.52 = 121,667.04 : x
  2. Step 2: Convert to fraction form
    202,286.88/279,065.52 = 121,667.04/x
  3. Step 3: Cross multiply
    202,286.88x = 279,065.52 × 121,667.04
  4. Step 4: Simplify right side
    202,286.88x = 33,953,075,784.46
  5. Step 5: Solve for x
    x = 33,953,075,784.46/202,286.88
  6. Step 6: Final answer
    x = 167,846.16

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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.