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Finding the Fourth Proportional to 202,620.65, 279,602.55 and 111,975.75

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Solution

The fourth proportional to 202,620.65, 279,602.55 and 111,975.75 is: 154,518.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,620.65 : 279,602.55 = 111,975.75 : x
  2. Step 2: Convert to fraction form
    202,620.65/279,602.55 = 111,975.75/x
  3. Step 3: Cross multiply
    202,620.65x = 279,602.55 × 111,975.75
  4. Step 4: Simplify right side
    202,620.65x = 31,308,705,238.16
  5. Step 5: Solve for x
    x = 31,308,705,238.16/202,620.65
  6. Step 6: Final answer
    x = 154,518.83

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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.