Home / 400,881.38-553,225.22-228,795.90

Finding the Fourth Proportional to 400,881.38, 553,225.22 and 228,795.90

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Solution

The fourth proportional to 400,881.38, 553,225.22 and 228,795.90 is: 315,743.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,881.38 : 553,225.22 = 228,795.90 : x
  2. Step 2: Convert to fraction form
    400,881.38/553,225.22 = 228,795.90/x
  3. Step 3: Cross multiply
    400,881.38x = 553,225.22 × 228,795.90
  4. Step 4: Simplify right side
    400,881.38x = 126,575,660,968.62
  5. Step 5: Solve for x
    x = 126,575,660,968.62/400,881.38
  6. Step 6: Final answer
    x = 315,743.43

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1.5x scale

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.