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Finding the Fourth Proportional to 401,369.52, 553,896.18 and 220,098

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Solution

The fourth proportional to 401,369.52, 553,896.18 and 220,098 is: 303,738.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,369.52 : 553,896.18 = 220,098 : x
  2. Step 2: Convert to fraction form
    401,369.52/553,896.18 = 220,098/x
  3. Step 3: Cross multiply
    401,369.52x = 553,896.18 × 220,098
  4. Step 4: Simplify right side
    401,369.52x = 121,911,441,425.64
  5. Step 5: Solve for x
    x = 121,911,441,425.64/401,369.52
  6. Step 6: Final answer
    x = 303,738.66

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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.