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Finding the Fourth Proportional to 406.72, 610.26 and 302.50

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Solution

The fourth proportional to 406.72, 610.26 and 302.50 is: 453.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    406.72 : 610.26 = 302.50 : x
  2. Step 2: Convert to fraction form
    406.72/610.26 = 302.50/x
  3. Step 3: Cross multiply
    406.72x = 610.26 × 302.50
  4. Step 4: Simplify right side
    406.72x = 184,603.65
  5. Step 5: Solve for x
    x = 184,603.65/406.72
  6. Step 6: Final answer
    x = 453.88

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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.