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Finding the Fourth Proportional to 347,395.37, 520,731.76 and 134,309.63

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Solution

The fourth proportional to 347,395.37, 520,731.76 and 134,309.63 is: 201,324.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,395.37 : 520,731.76 = 134,309.63 : x
  2. Step 2: Convert to fraction form
    347,395.37/520,731.76 = 134,309.63/x
  3. Step 3: Cross multiply
    347,395.37x = 520,731.76 × 134,309.63
  4. Step 4: Simplify right side
    347,395.37x = 69,939,289,132.74
  5. Step 5: Solve for x
    x = 69,939,289,132.74/347,395.37
  6. Step 6: Final answer
    x = 201,324.76

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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.