Home / 400,818.02-553,137.82-228,732.56

Finding the Fourth Proportional to 400,818.02, 553,137.82 and 228,732.56

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Solution

The fourth proportional to 400,818.02, 553,137.82 and 228,732.56 is: 315,656.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,818.02 : 553,137.82 = 228,732.56 : x
  2. Step 2: Convert to fraction form
    400,818.02/553,137.82 = 228,732.56/x
  3. Step 3: Cross multiply
    400,818.02x = 553,137.82 × 228,732.56
  4. Step 4: Simplify right side
    400,818.02x = 126,520,629,601.42
  5. Step 5: Solve for x
    x = 126,520,629,601.42/400,818.02
  6. Step 6: Final answer
    x = 315,656.04

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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.