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Finding the Fourth Proportional to 407, 610.68 and 160.16

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Solution

The fourth proportional to 407, 610.68 and 160.16 is: 240.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    407 : 610.68 = 160.16 : x
  2. Step 2: Convert to fraction form
    407/610.68 = 160.16/x
  3. Step 3: Cross multiply
    407x = 610.68 × 160.16
  4. Step 4: Simplify right side
    407x = 97,806.51
  5. Step 5: Solve for x
    x = 97,806.51/407
  6. Step 6: Final answer
    x = 240.31

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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.