Home / 266,458.05-398,970.85-202,975.75

Finding the Fourth Proportional to 266,458.05, 398,970.85 and 202,975.75

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Solution

The fourth proportional to 266,458.05, 398,970.85 and 202,975.75 is: 303,918.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,458.05 : 398,970.85 = 202,975.75 : x
  2. Step 2: Convert to fraction form
    266,458.05/398,970.85 = 202,975.75/x
  3. Step 3: Cross multiply
    266,458.05x = 398,970.85 × 202,975.75
  4. Step 4: Simplify right side
    266,458.05x = 80,981,406,999.45
  5. Step 5: Solve for x
    x = 80,981,406,999.45/266,458.05
  6. Step 6: Final answer
    x = 303,918.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.