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Finding the Fourth Proportional to 673.69, 1,010.58 and 262.80

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Solution

The fourth proportional to 673.69, 1,010.58 and 262.80 is: 394.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.69 : 1,010.58 = 262.80 : x
  2. Step 2: Convert to fraction form
    673.69/1,010.58 = 262.80/x
  3. Step 3: Cross multiply
    673.69x = 1,010.58 × 262.80
  4. Step 4: Simplify right side
    673.69x = 265,580.42
  5. Step 5: Solve for x
    x = 265,580.42/673.69
  6. Step 6: Final answer
    x = 394.22

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