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Finding the Fourth Proportional to 347.85, 519.59 and 346.23

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Solution

The fourth proportional to 347.85, 519.59 and 346.23 is: 517.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.85 : 519.59 = 346.23 : x
  2. Step 2: Convert to fraction form
    347.85/519.59 = 346.23/x
  3. Step 3: Cross multiply
    347.85x = 519.59 × 346.23
  4. Step 4: Simplify right side
    347.85x = 179,898.51
  5. Step 5: Solve for x
    x = 179,898.51/347.85
  6. Step 6: Final answer
    x = 517.17

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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.