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Finding the Fourth Proportional to 310,441.40, 465,272.50 and 132,739.48

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Solution

The fourth proportional to 310,441.40, 465,272.50 and 132,739.48 is: 198,942.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,441.40 : 465,272.50 = 132,739.48 : x
  2. Step 2: Convert to fraction form
    310,441.40/465,272.50 = 132,739.48/x
  3. Step 3: Cross multiply
    310,441.40x = 465,272.50 × 132,739.48
  4. Step 4: Simplify right side
    310,441.40x = 61,760,029,708.30
  5. Step 5: Solve for x
    x = 61,760,029,708.30/310,441.40
  6. Step 6: Final answer
    x = 198,942.63

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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.