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Finding the Fourth Proportional to 654.48, 980.50 and 376.51

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Solution

The fourth proportional to 654.48, 980.50 and 376.51 is: 564.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    654.48 : 980.50 = 376.51 : x
  2. Step 2: Convert to fraction form
    654.48/980.50 = 376.51/x
  3. Step 3: Cross multiply
    654.48x = 980.50 × 376.51
  4. Step 4: Simplify right side
    654.48x = 369,168.06
  5. Step 5: Solve for x
    x = 369,168.06/654.48
  6. Step 6: Final answer
    x = 564.07

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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.