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Finding the Fourth Proportional to 347.15, 520.97 and 152.26

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Solution

The fourth proportional to 347.15, 520.97 and 152.26 is: 228.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.15 : 520.97 = 152.26 : x
  2. Step 2: Convert to fraction form
    347.15/520.97 = 152.26/x
  3. Step 3: Cross multiply
    347.15x = 520.97 × 152.26
  4. Step 4: Simplify right side
    347.15x = 79,320.83
  5. Step 5: Solve for x
    x = 79,320.83/347.15
  6. Step 6: Final answer
    x = 228.49

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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.