Home / 228,541.49-315,388.13-126,564.71

Finding the Fourth Proportional to 228,541.49, 315,388.13 and 126,564.71

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Solution

The fourth proportional to 228,541.49, 315,388.13 and 126,564.71 is: 174,659.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,541.49 : 315,388.13 = 126,564.71 : x
  2. Step 2: Convert to fraction form
    228,541.49/315,388.13 = 126,564.71/x
  3. Step 3: Cross multiply
    228,541.49x = 315,388.13 × 126,564.71
  4. Step 4: Simplify right side
    228,541.49x = 39,917,005,001.13
  5. Step 5: Solve for x
    x = 39,917,005,001.13/228,541.49
  6. Step 6: Final answer
    x = 174,659.78

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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.