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Finding the Fourth Proportional to 223,112.42, 334,801.61 and 80,968.80

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Solution

The fourth proportional to 223,112.42, 334,801.61 and 80,968.80 is: 121,501.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,112.42 : 334,801.61 = 80,968.80 : x
  2. Step 2: Convert to fraction form
    223,112.42/334,801.61 = 80,968.80/x
  3. Step 3: Cross multiply
    223,112.42x = 334,801.61 × 80,968.80
  4. Step 4: Simplify right side
    223,112.42x = 27,108,484,599.77
  5. Step 5: Solve for x
    x = 27,108,484,599.77/223,112.42
  6. Step 6: Final answer
    x = 121,501.46

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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.