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Finding the Fourth Proportional to 631.04, 870.60 and 382.27

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Solution

The fourth proportional to 631.04, 870.60 and 382.27 is: 527.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    631.04 : 870.60 = 382.27 : x
  2. Step 2: Convert to fraction form
    631.04/870.60 = 382.27/x
  3. Step 3: Cross multiply
    631.04x = 870.60 × 382.27
  4. Step 4: Simplify right side
    631.04x = 332,804.08
  5. Step 5: Solve for x
    x = 332,804.08/631.04
  6. Step 6: Final answer
    x = 527.39

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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.