Home / 407,040.20-561,749.96-225,810.51

Finding the Fourth Proportional to 407,040.20, 561,749.96 and 225,810.51

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Solution

The fourth proportional to 407,040.20, 561,749.96 and 225,810.51 is: 311,637.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,040.20 : 561,749.96 = 225,810.51 : x
  2. Step 2: Convert to fraction form
    407,040.20/561,749.96 = 225,810.51/x
  3. Step 3: Cross multiply
    407,040.20x = 561,749.96 × 225,810.51
  4. Step 4: Simplify right side
    407,040.20x = 126,849,043,831.03
  5. Step 5: Solve for x
    x = 126,849,043,831.03/407,040.20
  6. Step 6: Final answer
    x = 311,637.64

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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.