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Finding the Fourth Proportional to 285,606.66, 427,611.27 and 215,265.54

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Solution

The fourth proportional to 285,606.66, 427,611.27 and 215,265.54 is: 322,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,606.66 : 427,611.27 = 215,265.54 : x
  2. Step 2: Convert to fraction form
    285,606.66/427,611.27 = 215,265.54/x
  3. Step 3: Cross multiply
    285,606.66x = 427,611.27 × 215,265.54
  4. Step 4: Simplify right side
    285,606.66x = 92,049,970,946.64
  5. Step 5: Solve for x
    x = 92,049,970,946.64/285,606.66
  6. Step 6: Final answer
    x = 322,296.30

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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.