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Finding the Fourth Proportional to 341.39, 471.18 and 210.51

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Solution

The fourth proportional to 341.39, 471.18 and 210.51 is: 290.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.39 : 471.18 = 210.51 : x
  2. Step 2: Convert to fraction form
    341.39/471.18 = 210.51/x
  3. Step 3: Cross multiply
    341.39x = 471.18 × 210.51
  4. Step 4: Simplify right side
    341.39x = 99,188.10
  5. Step 5: Solve for x
    x = 99,188.10/341.39
  6. Step 6: Final answer
    x = 290.55

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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.