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Finding the Fourth Proportional to 305,693.40, 458,604.90 and 92,443.80

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Solution

The fourth proportional to 305,693.40, 458,604.90 and 92,443.80 is: 138,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,693.40 : 458,604.90 = 92,443.80 : x
  2. Step 2: Convert to fraction form
    305,693.40/458,604.90 = 92,443.80/x
  3. Step 3: Cross multiply
    305,693.40x = 458,604.90 × 92,443.80
  4. Step 4: Simplify right side
    305,693.40x = 42,395,179,654.62
  5. Step 5: Solve for x
    x = 42,395,179,654.62/305,693.40
  6. Step 6: Final answer
    x = 138,685.30

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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.