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Finding the Fourth Proportional to 507.52, 761.52 and 219.04

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Solution

The fourth proportional to 507.52, 761.52 and 219.04 is: 328.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.52 : 761.52 = 219.04 : x
  2. Step 2: Convert to fraction form
    507.52/761.52 = 219.04/x
  3. Step 3: Cross multiply
    507.52x = 761.52 × 219.04
  4. Step 4: Simplify right side
    507.52x = 166,803.34
  5. Step 5: Solve for x
    x = 166,803.34/507.52
  6. Step 6: Final answer
    x = 328.66

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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.