Home / 421,004.32-631,080.96-181,274.56

Finding the Fourth Proportional to 421,004.32, 631,080.96 and 181,274.56

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Solution

The fourth proportional to 421,004.32, 631,080.96 and 181,274.56 is: 271,728.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,004.32 : 631,080.96 = 181,274.56 : x
  2. Step 2: Convert to fraction form
    421,004.32/631,080.96 = 181,274.56/x
  3. Step 3: Cross multiply
    421,004.32x = 631,080.96 × 181,274.56
  4. Step 4: Simplify right side
    421,004.32x = 114,398,923,348.38
  5. Step 5: Solve for x
    x = 114,398,923,348.38/421,004.32
  6. Step 6: Final answer
    x = 271,728.62

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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.