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Finding the Fourth Proportional to 474.51, 654.78 and 264.69

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Solution

The fourth proportional to 474.51, 654.78 and 264.69 is: 365.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    474.51 : 654.78 = 264.69 : x
  2. Step 2: Convert to fraction form
    474.51/654.78 = 264.69/x
  3. Step 3: Cross multiply
    474.51x = 654.78 × 264.69
  4. Step 4: Simplify right side
    474.51x = 173,313.72
  5. Step 5: Solve for x
    x = 173,313.72/474.51
  6. Step 6: Final answer
    x = 365.25

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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.