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Finding the Fourth Proportional to 345.29, 476.50 and 190.04

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Solution

The fourth proportional to 345.29, 476.50 and 190.04 is: 262.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.29 : 476.50 = 190.04 : x
  2. Step 2: Convert to fraction form
    345.29/476.50 = 190.04/x
  3. Step 3: Cross multiply
    345.29x = 476.50 × 190.04
  4. Step 4: Simplify right side
    345.29x = 90,550.73
  5. Step 5: Solve for x
    x = 90,550.73/345.29
  6. Step 6: Final answer
    x = 262.25

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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.