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Finding the Fourth Proportional to 220,810.60, 331,215.90 and 110,218.60

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Solution

The fourth proportional to 220,810.60, 331,215.90 and 110,218.60 is: 165,327.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,810.60 : 331,215.90 = 110,218.60 : x
  2. Step 2: Convert to fraction form
    220,810.60/331,215.90 = 110,218.60/x
  3. Step 3: Cross multiply
    220,810.60x = 331,215.90 × 110,218.60
  4. Step 4: Simplify right side
    220,810.60x = 36,506,152,795.74
  5. Step 5: Solve for x
    x = 36,506,152,795.74/220,810.60
  6. Step 6: Final answer
    x = 165,327.90

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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.