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Finding the Fourth Proportional to 285,136.77, 393,532.92 and 162,629.40

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Solution

The fourth proportional to 285,136.77, 393,532.92 and 162,629.40 is: 224,453.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,136.77 : 393,532.92 = 162,629.40 : x
  2. Step 2: Convert to fraction form
    285,136.77/393,532.92 = 162,629.40/x
  3. Step 3: Cross multiply
    285,136.77x = 393,532.92 × 162,629.40
  4. Step 4: Simplify right side
    285,136.77x = 64,000,022,659.85
  5. Step 5: Solve for x
    x = 64,000,022,659.85/285,136.77
  6. Step 6: Final answer
    x = 224,453.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.