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Finding the Fourth Proportional to 471.60, 704.66 and 340.98

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Solution

The fourth proportional to 471.60, 704.66 and 340.98 is: 509.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    471.60 : 704.66 = 340.98 : x
  2. Step 2: Convert to fraction form
    471.60/704.66 = 340.98/x
  3. Step 3: Cross multiply
    471.60x = 704.66 × 340.98
  4. Step 4: Simplify right side
    471.60x = 240,274.97
  5. Step 5: Solve for x
    x = 240,274.97/471.60
  6. Step 6: Final answer
    x = 509.49

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.