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Finding the Fourth Proportional to 630.02, 869.43 and 350.28

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Solution

The fourth proportional to 630.02, 869.43 and 350.28 is: 483.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.02 : 869.43 = 350.28 : x
  2. Step 2: Convert to fraction form
    630.02/869.43 = 350.28/x
  3. Step 3: Cross multiply
    630.02x = 869.43 × 350.28
  4. Step 4: Simplify right side
    630.02x = 304,543.94
  5. Step 5: Solve for x
    x = 304,543.94/630.02
  6. Step 6: Final answer
    x = 483.39

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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.