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Finding the Fourth Proportional to 555.39, 832.97 and 247.07

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Solution

The fourth proportional to 555.39, 832.97 and 247.07 is: 370.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.39 : 832.97 = 247.07 : x
  2. Step 2: Convert to fraction form
    555.39/832.97 = 247.07/x
  3. Step 3: Cross multiply
    555.39x = 832.97 × 247.07
  4. Step 4: Simplify right side
    555.39x = 205,804.60
  5. Step 5: Solve for x
    x = 205,804.60/555.39
  6. Step 6: Final answer
    x = 370.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.