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Finding the Fourth Proportional to 347,247.20, 520,093.20 and 207,279.20

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Solution

The fourth proportional to 347,247.20, 520,093.20 and 207,279.20 is: 310,454.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,247.20 : 520,093.20 = 207,279.20 : x
  2. Step 2: Convert to fraction form
    347,247.20/520,093.20 = 207,279.20/x
  3. Step 3: Cross multiply
    347,247.20x = 520,093.20 × 207,279.20
  4. Step 4: Simplify right side
    347,247.20x = 107,804,502,421.44
  5. Step 5: Solve for x
    x = 107,804,502,421.44/347,247.20
  6. Step 6: Final answer
    x = 310,454.63

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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.