Home / 648.08-971.60-301.23

Finding the Fourth Proportional to 648.08, 971.60 and 301.23

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Solution

The fourth proportional to 648.08, 971.60 and 301.23 is: 451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    648.08 : 971.60 = 301.23 : x
  2. Step 2: Convert to fraction form
    648.08/971.60 = 301.23/x
  3. Step 3: Cross multiply
    648.08x = 971.60 × 301.23
  4. Step 4: Simplify right side
    648.08x = 292,673.56
  5. Step 5: Solve for x
    x = 292,673.56/648.08
  6. Step 6: Final answer
    x = 451.60

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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.