Home / 228,231.36-314,982.81-131,438.39

Finding the Fourth Proportional to 228,231.36, 314,982.81 and 131,438.39

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Solution

The fourth proportional to 228,231.36, 314,982.81 and 131,438.39 is: 181,398.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,231.36 : 314,982.81 = 131,438.39 : x
  2. Step 2: Convert to fraction form
    228,231.36/314,982.81 = 131,438.39/x
  3. Step 3: Cross multiply
    228,231.36x = 314,982.81 × 131,438.39
  4. Step 4: Simplify right side
    228,231.36x = 41,400,831,849.16
  5. Step 5: Solve for x
    x = 41,400,831,849.16/228,231.36
  6. Step 6: Final answer
    x = 181,398.52

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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.