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Finding the Fourth Proportional to 507.21, 756.36 and 502.59

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Solution

The fourth proportional to 507.21, 756.36 and 502.59 is: 749.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.21 : 756.36 = 502.59 : x
  2. Step 2: Convert to fraction form
    507.21/756.36 = 502.59/x
  3. Step 3: Cross multiply
    507.21x = 756.36 × 502.59
  4. Step 4: Simplify right side
    507.21x = 380,134.25
  5. Step 5: Solve for x
    x = 380,134.25/507.21
  6. Step 6: Final answer
    x = 749.47

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.