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Finding the Fourth Proportional to 673.24, 1,009.52 and 262.06

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Solution

The fourth proportional to 673.24, 1,009.52 and 262.06 is: 392.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    673.24 : 1,009.52 = 262.06 : x
  2. Step 2: Convert to fraction form
    673.24/1,009.52 = 262.06/x
  3. Step 3: Cross multiply
    673.24x = 1,009.52 × 262.06
  4. Step 4: Simplify right side
    673.24x = 264,554.81
  5. Step 5: Solve for x
    x = 264,554.81/673.24
  6. Step 6: Final answer
    x = 392.96

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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.