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Finding the Fourth Proportional to 341.63, 471.47 and 210.57

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Solution

The fourth proportional to 341.63, 471.47 and 210.57 is: 290.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    341.63 : 471.47 = 210.57 : x
  2. Step 2: Convert to fraction form
    341.63/471.47 = 210.57/x
  3. Step 3: Cross multiply
    341.63x = 471.47 × 210.57
  4. Step 4: Simplify right side
    341.63x = 99,276.39
  5. Step 5: Solve for x
    x = 99,276.39/341.63
  6. Step 6: Final answer
    x = 290.60

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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.