Home / 407,080.72-561,838.67-225,851.02

Finding the Fourth Proportional to 407,080.72, 561,838.67 and 225,851.02

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Solution

The fourth proportional to 407,080.72, 561,838.67 and 225,851.02 is: 311,711.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,080.72 : 561,838.67 = 225,851.02 : x
  2. Step 2: Convert to fraction form
    407,080.72/561,838.67 = 225,851.02/x
  3. Step 3: Cross multiply
    407,080.72x = 561,838.67 × 225,851.02
  4. Step 4: Simplify right side
    407,080.72x = 126,891,835,008.03
  5. Step 5: Solve for x
    x = 126,891,835,008.03/407,080.72
  6. Step 6: Final answer
    x = 311,711.73

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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.