Home / 315,228.76-472,221.06-236,431.96

Finding the Fourth Proportional to 315,228.76, 472,221.06 and 236,431.96

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Solution

The fourth proportional to 315,228.76, 472,221.06 and 236,431.96 is: 354,181.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,228.76 : 472,221.06 = 236,431.96 : x
  2. Step 2: Convert to fraction form
    315,228.76/472,221.06 = 236,431.96/x
  3. Step 3: Cross multiply
    315,228.76x = 472,221.06 × 236,431.96
  4. Step 4: Simplify right side
    315,228.76x = 111,648,150,769.08
  5. Step 5: Solve for x
    x = 111,648,150,769.08/315,228.76
  6. Step 6: Final answer
    x = 354,181.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.