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Finding the Fourth Proportional to 220,583.60, 330,714.11 and 70,738.60

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Solution

The fourth proportional to 220,583.60, 330,714.11 and 70,738.60 is: 106,056.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,583.60 : 330,714.11 = 70,738.60 : x
  2. Step 2: Convert to fraction form
    220,583.60/330,714.11 = 70,738.60/x
  3. Step 3: Cross multiply
    220,583.60x = 330,714.11 × 70,738.60
  4. Step 4: Simplify right side
    220,583.60x = 23,394,252,491.71
  5. Step 5: Solve for x
    x = 23,394,252,491.71/220,583.60
  6. Step 6: Final answer
    x = 106,056.17

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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.