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Finding the Fourth Proportional to 301.96, 453.58 and 259.72

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Solution

The fourth proportional to 301.96, 453.58 and 259.72 is: 390.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.96 : 453.58 = 259.72 : x
  2. Step 2: Convert to fraction form
    301.96/453.58 = 259.72/x
  3. Step 3: Cross multiply
    301.96x = 453.58 × 259.72
  4. Step 4: Simplify right side
    301.96x = 117,803.80
  5. Step 5: Solve for x
    x = 117,803.80/301.96
  6. Step 6: Final answer
    x = 390.13

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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.