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Finding the Fourth Proportional to 401,047.27, 553,392.61 and 239,843.50

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Solution

The fourth proportional to 401,047.27, 553,392.61 and 239,843.50 is: 330,952.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,047.27 : 553,392.61 = 239,843.50 : x
  2. Step 2: Convert to fraction form
    401,047.27/553,392.61 = 239,843.50/x
  3. Step 3: Cross multiply
    401,047.27x = 553,392.61 × 239,843.50
  4. Step 4: Simplify right side
    401,047.27x = 132,727,618,473.45
  5. Step 5: Solve for x
    x = 132,727,618,473.45/401,047.27
  6. Step 6: Final answer
    x = 330,952.56

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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.