Home / 400,926.21-553,276.52-219,649.42

Finding the Fourth Proportional to 400,926.21, 553,276.52 and 219,649.42

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Solution

The fourth proportional to 400,926.21, 553,276.52 and 219,649.42 is: 303,115.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,926.21 : 553,276.52 = 219,649.42 : x
  2. Step 2: Convert to fraction form
    400,926.21/553,276.52 = 219,649.42/x
  3. Step 3: Cross multiply
    400,926.21x = 553,276.52 × 219,649.42
  4. Step 4: Simplify right side
    400,926.21x = 121,526,868,370.18
  5. Step 5: Solve for x
    x = 121,526,868,370.18/400,926.21
  6. Step 6: Final answer
    x = 303,115.30

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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.