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Finding the Fourth Proportional to 263,617.48, 395,426.70 and 76,630.60

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Solution

The fourth proportional to 263,617.48, 395,426.70 and 76,630.60 is: 114,946.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,617.48 : 395,426.70 = 76,630.60 : x
  2. Step 2: Convert to fraction form
    263,617.48/395,426.70 = 76,630.60/x
  3. Step 3: Cross multiply
    263,617.48x = 395,426.70 × 76,630.60
  4. Step 4: Simplify right side
    263,617.48x = 30,301,785,277.02
  5. Step 5: Solve for x
    x = 30,301,785,277.02/263,617.48
  6. Step 6: Final answer
    x = 114,946.04

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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.