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Finding the Fourth Proportional to 669.71, 924.17 and 375.07

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Solution

The fourth proportional to 669.71, 924.17 and 375.07 is: 517.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    669.71 : 924.17 = 375.07 : x
  2. Step 2: Convert to fraction form
    669.71/924.17 = 375.07/x
  3. Step 3: Cross multiply
    669.71x = 924.17 × 375.07
  4. Step 4: Simplify right side
    669.71x = 346,628.44
  5. Step 5: Solve for x
    x = 346,628.44/669.71
  6. Step 6: Final answer
    x = 517.58

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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.