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Finding the Fourth Proportional to 343.02, 473.35 and 187.74

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Solution

The fourth proportional to 343.02, 473.35 and 187.74 is: 259.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    343.02 : 473.35 = 187.74 : x
  2. Step 2: Convert to fraction form
    343.02/473.35 = 187.74/x
  3. Step 3: Cross multiply
    343.02x = 473.35 × 187.74
  4. Step 4: Simplify right side
    343.02x = 88,866.73
  5. Step 5: Solve for x
    x = 88,866.73/343.02
  6. Step 6: Final answer
    x = 259.07

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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.