Home / 400,909.41-553,100.87-228,836.96

Finding the Fourth Proportional to 400,909.41, 553,100.87 and 228,836.96

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Solution

The fourth proportional to 400,909.41, 553,100.87 and 228,836.96 is: 315,707.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,909.41 : 553,100.87 = 228,836.96 : x
  2. Step 2: Convert to fraction form
    400,909.41/553,100.87 = 228,836.96/x
  3. Step 3: Cross multiply
    400,909.41x = 553,100.87 × 228,836.96
  4. Step 4: Simplify right side
    400,909.41x = 126,569,921,973.94
  5. Step 5: Solve for x
    x = 126,569,921,973.94/400,909.41
  6. Step 6: Final answer
    x = 315,707.04

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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.