Home / 407,090.10-561,851.61-225,860.43

Finding the Fourth Proportional to 407,090.10, 561,851.61 and 225,860.43

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Solution

The fourth proportional to 407,090.10, 561,851.61 and 225,860.43 is: 311,724.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,090.10 : 561,851.61 = 225,860.43 : x
  2. Step 2: Convert to fraction form
    407,090.10/561,851.61 = 225,860.43/x
  3. Step 3: Cross multiply
    407,090.10x = 561,851.61 × 225,860.43
  4. Step 4: Simplify right side
    407,090.10x = 126,900,046,230.79
  5. Step 5: Solve for x
    x = 126,900,046,230.79/407,090.10
  6. Step 6: Final answer
    x = 311,724.72

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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.