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Finding the Fourth Proportional to 332,136.40, 498,204.60 and 285,480.40

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Solution

The fourth proportional to 332,136.40, 498,204.60 and 285,480.40 is: 428,220.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,136.40 : 498,204.60 = 285,480.40 : x
  2. Step 2: Convert to fraction form
    332,136.40/498,204.60 = 285,480.40/x
  3. Step 3: Cross multiply
    332,136.40x = 498,204.60 × 285,480.40
  4. Step 4: Simplify right side
    332,136.40x = 142,227,648,489.84
  5. Step 5: Solve for x
    x = 142,227,648,489.84/332,136.40
  6. Step 6: Final answer
    x = 428,220.60

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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.