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Finding the Fourth Proportional to 330,868.28, 496,302.47 and 81,550.28

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Solution

The fourth proportional to 330,868.28, 496,302.47 and 81,550.28 is: 122,325.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,868.28 : 496,302.47 = 81,550.28 : x
  2. Step 2: Convert to fraction form
    330,868.28/496,302.47 = 81,550.28/x
  3. Step 3: Cross multiply
    330,868.28x = 496,302.47 × 81,550.28
  4. Step 4: Simplify right side
    330,868.28x = 40,473,605,393.19
  5. Step 5: Solve for x
    x = 40,473,605,393.19/330,868.28
  6. Step 6: Final answer
    x = 122,325.43

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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.