Home / 407,003.13-561,664.31-225,742.81

Finding the Fourth Proportional to 407,003.13, 561,664.31 and 225,742.81

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Solution

The fourth proportional to 407,003.13, 561,664.31 and 225,742.81 is: 311,525.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,003.13 : 561,664.31 = 225,742.81 : x
  2. Step 2: Convert to fraction form
    407,003.13/561,664.31 = 225,742.81/x
  3. Step 3: Cross multiply
    407,003.13x = 561,664.31 × 225,742.81
  4. Step 4: Simplify right side
    407,003.13x = 126,791,679,616.11
  5. Step 5: Solve for x
    x = 126,791,679,616.11/407,003.13
  6. Step 6: Final answer
    x = 311,525.07

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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.