Home / 400,974.06-553,344.18-219,692.86

Finding the Fourth Proportional to 400,974.06, 553,344.18 and 219,692.86

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Solution

The fourth proportional to 400,974.06, 553,344.18 and 219,692.86 is: 303,176.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,974.06 : 553,344.18 = 219,692.86 : x
  2. Step 2: Convert to fraction form
    400,974.06/553,344.18 = 219,692.86/x
  3. Step 3: Cross multiply
    400,974.06x = 553,344.18 × 219,692.86
  4. Step 4: Simplify right side
    400,974.06x = 121,565,765,468.56
  5. Step 5: Solve for x
    x = 121,565,765,468.56/400,974.06
  6. Step 6: Final answer
    x = 303,176.13

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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.