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Finding the Fourth Proportional to 346,781.58, 520,190.37 and 110,142.78

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Solution

The fourth proportional to 346,781.58, 520,190.37 and 110,142.78 is: 165,219.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,781.58 : 520,190.37 = 110,142.78 : x
  2. Step 2: Convert to fraction form
    346,781.58/520,190.37 = 110,142.78/x
  3. Step 3: Cross multiply
    346,781.58x = 520,190.37 × 110,142.78
  4. Step 4: Simplify right side
    346,781.58x = 57,295,213,481.03
  5. Step 5: Solve for x
    x = 57,295,213,481.03/346,781.58
  6. Step 6: Final answer
    x = 165,219.89

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1.5x scale

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.