Home / 400,822.54-553,144.02-228,737.05

Finding the Fourth Proportional to 400,822.54, 553,144.02 and 228,737.05

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Solution

The fourth proportional to 400,822.54, 553,144.02 and 228,737.05 is: 315,662.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,822.54 : 553,144.02 = 228,737.05 : x
  2. Step 2: Convert to fraction form
    400,822.54/553,144.02 = 228,737.05/x
  3. Step 3: Cross multiply
    400,822.54x = 553,144.02 × 228,737.05
  4. Step 4: Simplify right side
    400,822.54x = 126,524,531,359.94
  5. Step 5: Solve for x
    x = 126,524,531,359.94/400,822.54
  6. Step 6: Final answer
    x = 315,662.22

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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.