Home / 228,261.36-315,010.08-126,285.20

Finding the Fourth Proportional to 228,261.36, 315,010.08 and 126,285.20

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Solution

The fourth proportional to 228,261.36, 315,010.08 and 126,285.20 is: 174,278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,261.36 : 315,010.08 = 126,285.20 : x
  2. Step 2: Convert to fraction form
    228,261.36/315,010.08 = 126,285.20/x
  3. Step 3: Cross multiply
    228,261.36x = 315,010.08 × 126,285.20
  4. Step 4: Simplify right side
    228,261.36x = 39,781,110,954.82
  5. Step 5: Solve for x
    x = 39,781,110,954.82/228,261.36
  6. Step 6: Final answer
    x = 174,278.78

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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.