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Finding the Fourth Proportional to 369.02, 509.23 and 203.24

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Solution

The fourth proportional to 369.02, 509.23 and 203.24 is: 280.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.02 : 509.23 = 203.24 : x
  2. Step 2: Convert to fraction form
    369.02/509.23 = 203.24/x
  3. Step 3: Cross multiply
    369.02x = 509.23 × 203.24
  4. Step 4: Simplify right side
    369.02x = 103,495.91
  5. Step 5: Solve for x
    x = 103,495.91/369.02
  6. Step 6: Final answer
    x = 280.46

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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.