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Finding the Fourth Proportional to 487, 730.50 and 162.37

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Solution

The fourth proportional to 487, 730.50 and 162.37 is: 243.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    487 : 730.50 = 162.37 : x
  2. Step 2: Convert to fraction form
    487/730.50 = 162.37/x
  3. Step 3: Cross multiply
    487x = 730.50 × 162.37
  4. Step 4: Simplify right side
    487x = 118,611.29
  5. Step 5: Solve for x
    x = 118,611.29/487
  6. Step 6: Final answer
    x = 243.56

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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.