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Finding the Fourth Proportional to 347.63, 520.37 and 191.06

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Solution

The fourth proportional to 347.63, 520.37 and 191.06 is: 286.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    347.63 : 520.37 = 191.06 : x
  2. Step 2: Convert to fraction form
    347.63/520.37 = 191.06/x
  3. Step 3: Cross multiply
    347.63x = 520.37 × 191.06
  4. Step 4: Simplify right side
    347.63x = 99,421.89
  5. Step 5: Solve for x
    x = 99,421.89/347.63
  6. Step 6: Final answer
    x = 286.00

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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.