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Finding the Fourth Proportional to 305,132.60, 457,698.90 and 94,791.80

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Solution

The fourth proportional to 305,132.60, 457,698.90 and 94,791.80 is: 142,187.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,132.60 : 457,698.90 = 94,791.80 : x
  2. Step 2: Convert to fraction form
    305,132.60/457,698.90 = 94,791.80/x
  3. Step 3: Cross multiply
    305,132.60x = 457,698.90 × 94,791.80
  4. Step 4: Simplify right side
    305,132.60x = 43,386,102,589.02
  5. Step 5: Solve for x
    x = 43,386,102,589.02/305,132.60
  6. Step 6: Final answer
    x = 142,187.70

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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.