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Finding the Fourth Proportional to 347,178.87, 520,762.77 and 110,518.20

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Solution

The fourth proportional to 347,178.87, 520,762.77 and 110,518.20 is: 165,775.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,178.87 : 520,762.77 = 110,518.20 : x
  2. Step 2: Convert to fraction form
    347,178.87/520,762.77 = 110,518.20/x
  3. Step 3: Cross multiply
    347,178.87x = 520,762.77 × 110,518.20
  4. Step 4: Simplify right side
    347,178.87x = 57,553,763,967.41
  5. Step 5: Solve for x
    x = 57,553,763,967.41/347,178.87
  6. Step 6: Final answer
    x = 165,775.54

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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.