Home / 421,003.32-631,079.46-181,273.56

Finding the Fourth Proportional to 421,003.32, 631,079.46 and 181,273.56

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Solution

The fourth proportional to 421,003.32, 631,079.46 and 181,273.56 is: 271,727.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,003.32 : 631,079.46 = 181,273.56 : x
  2. Step 2: Convert to fraction form
    421,003.32/631,079.46 = 181,273.56/x
  3. Step 3: Cross multiply
    421,003.32x = 631,079.46 × 181,273.56
  4. Step 4: Simplify right side
    421,003.32x = 114,398,020,357.08
  5. Step 5: Solve for x
    x = 114,398,020,357.08/421,003.32
  6. Step 6: Final answer
    x = 271,727.12

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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.