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Finding the Fourth Proportional to 220,199.94, 330,261 and 87,035.94

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Solution

The fourth proportional to 220,199.94, 330,261 and 87,035.94 is: 130,538.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,199.94 : 330,261 = 87,035.94 : x
  2. Step 2: Convert to fraction form
    220,199.94/330,261 = 87,035.94/x
  3. Step 3: Cross multiply
    220,199.94x = 330,261 × 87,035.94
  4. Step 4: Simplify right side
    220,199.94x = 28,744,576,580.34
  5. Step 5: Solve for x
    x = 28,744,576,580.34/220,199.94
  6. Step 6: Final answer
    x = 130,538.53

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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.