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Finding the Fourth Proportional to 347.60, 520.37 and 210.23

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Solution

The fourth proportional to 347.60, 520.37 and 210.23 is: 314.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.60 : 520.37 = 210.23 : x
  2. Step 2: Convert to fraction form
    347.60/520.37 = 210.23/x
  3. Step 3: Cross multiply
    347.60x = 520.37 × 210.23
  4. Step 4: Simplify right side
    347.60x = 109,395.31
  5. Step 5: Solve for x
    x = 109,395.31/347.60
  6. Step 6: Final answer
    x = 314.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.