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Finding the Fourth Proportional to 438.77, 656.77 and 301.01

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Solution

The fourth proportional to 438.77, 656.77 and 301.01 is: 450.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    438.77 : 656.77 = 301.01 : x
  2. Step 2: Convert to fraction form
    438.77/656.77 = 301.01/x
  3. Step 3: Cross multiply
    438.77x = 656.77 × 301.01
  4. Step 4: Simplify right side
    438.77x = 197,690.30
  5. Step 5: Solve for x
    x = 197,690.30/438.77
  6. Step 6: Final answer
    x = 450.56

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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.