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Finding the Fourth Proportional to 398,803.08, 550,334.82 and 237,574.62

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Solution

The fourth proportional to 398,803.08, 550,334.82 and 237,574.62 is: 327,844.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,803.08 : 550,334.82 = 237,574.62 : x
  2. Step 2: Convert to fraction form
    398,803.08/550,334.82 = 237,574.62/x
  3. Step 3: Cross multiply
    398,803.08x = 550,334.82 × 237,574.62
  4. Step 4: Simplify right side
    398,803.08x = 130,745,585,734.27
  5. Step 5: Solve for x
    x = 130,745,585,734.27/398,803.08
  6. Step 6: Final answer
    x = 327,844.97

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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.