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Finding the Fourth Proportional to 301.58, 452.52 and 215.16

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Solution

The fourth proportional to 301.58, 452.52 and 215.16 is: 322.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    301.58 : 452.52 = 215.16 : x
  2. Step 2: Convert to fraction form
    301.58/452.52 = 215.16/x
  3. Step 3: Cross multiply
    301.58x = 452.52 × 215.16
  4. Step 4: Simplify right side
    301.58x = 97,364.20
  5. Step 5: Solve for x
    x = 97,364.20/301.58
  6. Step 6: Final answer
    x = 322.85

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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.