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Finding the Fourth Proportional to 537.48, 805.05 and 320.58

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Solution

The fourth proportional to 537.48, 805.05 and 320.58 is: 480.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    537.48 : 805.05 = 320.58 : x
  2. Step 2: Convert to fraction form
    537.48/805.05 = 320.58/x
  3. Step 3: Cross multiply
    537.48x = 805.05 × 320.58
  4. Step 4: Simplify right side
    537.48x = 258,082.93
  5. Step 5: Solve for x
    x = 258,082.93/537.48
  6. Step 6: Final answer
    x = 480.17

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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.