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Finding the Fourth Proportional to 369.85, 510.39 and 230.03

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Solution

The fourth proportional to 369.85, 510.39 and 230.03 is: 317.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.85 : 510.39 = 230.03 : x
  2. Step 2: Convert to fraction form
    369.85/510.39 = 230.03/x
  3. Step 3: Cross multiply
    369.85x = 510.39 × 230.03
  4. Step 4: Simplify right side
    369.85x = 117,405.01
  5. Step 5: Solve for x
    x = 117,405.01/369.85
  6. Step 6: Final answer
    x = 317.44

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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.