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Finding the Fourth Proportional to 300,420.27, 450,785.70 and 132,058.80

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Solution

The fourth proportional to 300,420.27, 450,785.70 and 132,058.80 is: 198,156.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,420.27 : 450,785.70 = 132,058.80 : x
  2. Step 2: Convert to fraction form
    300,420.27/450,785.70 = 132,058.80/x
  3. Step 3: Cross multiply
    300,420.27x = 450,785.70 × 132,058.80
  4. Step 4: Simplify right side
    300,420.27x = 59,530,218,599.16
  5. Step 5: Solve for x
    x = 59,530,218,599.16/300,420.27
  6. Step 6: Final answer
    x = 198,156.46

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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.