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Finding the Fourth Proportional to 673.36, 1,010 and 308.08

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Solution

The fourth proportional to 673.36, 1,010 and 308.08 is: 462.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.36 : 1,010 = 308.08 : x
  2. Step 2: Convert to fraction form
    673.36/1,010 = 308.08/x
  3. Step 3: Cross multiply
    673.36x = 1,010 × 308.08
  4. Step 4: Simplify right side
    673.36x = 311,160.80
  5. Step 5: Solve for x
    x = 311,160.80/673.36
  6. Step 6: Final answer
    x = 462.10

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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.