Home / 400,864.34-553,201.69-228,778.88

Finding the Fourth Proportional to 400,864.34, 553,201.69 and 228,778.88

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Solution

The fourth proportional to 400,864.34, 553,201.69 and 228,778.88 is: 315,719.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,864.34 : 553,201.69 = 228,778.88 : x
  2. Step 2: Convert to fraction form
    400,864.34/553,201.69 = 228,778.88/x
  3. Step 3: Cross multiply
    400,864.34x = 553,201.69 × 228,778.88
  4. Step 4: Simplify right side
    400,864.34x = 126,560,862,933.35
  5. Step 5: Solve for x
    x = 126,560,862,933.35/400,864.34
  6. Step 6: Final answer
    x = 315,719.93

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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.