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Finding the Fourth Proportional to 285,363.20, 427,737.60 and 107,801.60

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Solution

The fourth proportional to 285,363.20, 427,737.60 and 107,801.60 is: 161,586.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,363.20 : 427,737.60 = 107,801.60 : x
  2. Step 2: Convert to fraction form
    285,363.20/427,737.60 = 107,801.60/x
  3. Step 3: Cross multiply
    285,363.20x = 427,737.60 × 107,801.60
  4. Step 4: Simplify right side
    285,363.20x = 46,110,797,660.16
  5. Step 5: Solve for x
    x = 46,110,797,660.16/285,363.20
  6. Step 6: Final answer
    x = 161,586.35

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1.5x scale

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.