Home / 400,867.35-553,205.82-228,781.89

Finding the Fourth Proportional to 400,867.35, 553,205.82 and 228,781.89

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Solution

The fourth proportional to 400,867.35, 553,205.82 and 228,781.89 is: 315,724.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,867.35 : 553,205.82 = 228,781.89 : x
  2. Step 2: Convert to fraction form
    400,867.35/553,205.82 = 228,781.89/x
  3. Step 3: Cross multiply
    400,867.35x = 553,205.82 × 228,781.89
  4. Step 4: Simplify right side
    400,867.35x = 126,563,473,058.60
  5. Step 5: Solve for x
    x = 126,563,473,058.60/400,867.35
  6. Step 6: Final answer
    x = 315,724.07

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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.