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Finding the Fourth Proportional to 507.04, 759.86 and 214.29

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Solution

The fourth proportional to 507.04, 759.86 and 214.29 is: 321.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.04 : 759.86 = 214.29 : x
  2. Step 2: Convert to fraction form
    507.04/759.86 = 214.29/x
  3. Step 3: Cross multiply
    507.04x = 759.86 × 214.29
  4. Step 4: Simplify right side
    507.04x = 162,830.13
  5. Step 5: Solve for x
    x = 162,830.13/507.04
  6. Step 6: Final answer
    x = 321.14

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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.