Home / 400,973.49-553,273.08-228,812.85

Finding the Fourth Proportional to 400,973.49, 553,273.08 and 228,812.85

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Solution

The fourth proportional to 400,973.49, 553,273.08 and 228,812.85 is: 315,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,973.49 : 553,273.08 = 228,812.85 : x
  2. Step 2: Convert to fraction form
    400,973.49/553,273.08 = 228,812.85/x
  3. Step 3: Cross multiply
    400,973.49x = 553,273.08 × 228,812.85
  4. Step 4: Simplify right side
    400,973.49x = 126,595,990,692.10
  5. Step 5: Solve for x
    x = 126,595,990,692.10/400,973.49
  6. Step 6: Final answer
    x = 315,721.60

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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.