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Finding the Fourth Proportional to 303,158.48, 454,737.40 and 81,542.48

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Solution

The fourth proportional to 303,158.48, 454,737.40 and 81,542.48 is: 122,313.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,158.48 : 454,737.40 = 81,542.48 : x
  2. Step 2: Convert to fraction form
    303,158.48/454,737.40 = 81,542.48/x
  3. Step 3: Cross multiply
    303,158.48x = 454,737.40 × 81,542.48
  4. Step 4: Simplify right side
    303,158.48x = 37,080,415,344.75
  5. Step 5: Solve for x
    x = 37,080,415,344.75/303,158.48
  6. Step 6: Final answer
    x = 122,313.63

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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.