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Finding the Fourth Proportional to 504.81, 755.63 and 347.72

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Solution

The fourth proportional to 504.81, 755.63 and 347.72 is: 520.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    504.81 : 755.63 = 347.72 : x
  2. Step 2: Convert to fraction form
    504.81/755.63 = 347.72/x
  3. Step 3: Cross multiply
    504.81x = 755.63 × 347.72
  4. Step 4: Simplify right side
    504.81x = 262,742.15
  5. Step 5: Solve for x
    x = 262,742.15/504.81
  6. Step 6: Final answer
    x = 520.48

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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.