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Finding the Fourth Proportional to 202,329.65, 279,213.35 and 111,685.65

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Solution

The fourth proportional to 202,329.65, 279,213.35 and 111,685.65 is: 154,125.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,329.65 : 279,213.35 = 111,685.65 : x
  2. Step 2: Convert to fraction form
    202,329.65/279,213.35 = 111,685.65/x
  3. Step 3: Cross multiply
    202,329.65x = 279,213.35 × 111,685.65
  4. Step 4: Simplify right side
    202,329.65x = 31,184,123,645.79
  5. Step 5: Solve for x
    x = 31,184,123,645.79/202,329.65
  6. Step 6: Final answer
    x = 154,125.33

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1.5x scale

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.