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Finding the Fourth Proportional to 341.34, 471.30 and 210.53

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Solution

The fourth proportional to 341.34, 471.30 and 210.53 is: 290.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.34 : 471.30 = 210.53 : x
  2. Step 2: Convert to fraction form
    341.34/471.30 = 210.53/x
  3. Step 3: Cross multiply
    341.34x = 471.30 × 210.53
  4. Step 4: Simplify right side
    341.34x = 99,220.43
  5. Step 5: Solve for x
    x = 99,220.43/341.34
  6. Step 6: Final answer
    x = 290.68

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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.