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Finding the Fourth Proportional to 341.56, 469.61 and 283.24

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Solution

The fourth proportional to 341.56, 469.61 and 283.24 is: 389.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.56 : 469.61 = 283.24 : x
  2. Step 2: Convert to fraction form
    341.56/469.61 = 283.24/x
  3. Step 3: Cross multiply
    341.56x = 469.61 × 283.24
  4. Step 4: Simplify right side
    341.56x = 133,012.34
  5. Step 5: Solve for x
    x = 133,012.34/341.56
  6. Step 6: Final answer
    x = 389.43

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.