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Finding the Fourth Proportional to 284,903.80, 427,355.70 and 178,615.60

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Solution

The fourth proportional to 284,903.80, 427,355.70 and 178,615.60 is: 267,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,903.80 : 427,355.70 = 178,615.60 : x
  2. Step 2: Convert to fraction form
    284,903.80/427,355.70 = 178,615.60/x
  3. Step 3: Cross multiply
    284,903.80x = 427,355.70 × 178,615.60
  4. Step 4: Simplify right side
    284,903.80x = 76,332,394,768.92
  5. Step 5: Solve for x
    x = 76,332,394,768.92/284,903.80
  6. Step 6: Final answer
    x = 267,923.40

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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.