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Finding the Fourth Proportional to 509.67, 703.16 and 344.07

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Solution

The fourth proportional to 509.67, 703.16 and 344.07 is: 474.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    509.67 : 703.16 = 344.07 : x
  2. Step 2: Convert to fraction form
    509.67/703.16 = 344.07/x
  3. Step 3: Cross multiply
    509.67x = 703.16 × 344.07
  4. Step 4: Simplify right side
    509.67x = 241,934.54
  5. Step 5: Solve for x
    x = 241,934.54/509.67
  6. Step 6: Final answer
    x = 474.69

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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.