Home / 407,171.36-561,897.14-225,883.28

Finding the Fourth Proportional to 407,171.36, 561,897.14 and 225,883.28

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Solution

The fourth proportional to 407,171.36, 561,897.14 and 225,883.28 is: 311,719.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,171.36 : 561,897.14 = 225,883.28 : x
  2. Step 2: Convert to fraction form
    407,171.36/561,897.14 = 225,883.28/x
  3. Step 3: Cross multiply
    407,171.36x = 561,897.14 × 225,883.28
  4. Step 4: Simplify right side
    407,171.36x = 126,923,169,281.15
  5. Step 5: Solve for x
    x = 126,923,169,281.15/407,171.36
  6. Step 6: Final answer
    x = 311,719.29

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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.