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Finding the Fourth Proportional to 507.47, 700.36 and 308.33

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Solution

The fourth proportional to 507.47, 700.36 and 308.33 is: 425.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    507.47 : 700.36 = 308.33 : x
  2. Step 2: Convert to fraction form
    507.47/700.36 = 308.33/x
  3. Step 3: Cross multiply
    507.47x = 700.36 × 308.33
  4. Step 4: Simplify right side
    507.47x = 215,942.18
  5. Step 5: Solve for x
    x = 215,942.18/507.47
  6. Step 6: Final answer
    x = 425.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.