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Finding the Fourth Proportional to 330,868.79, 496,303.23 and 81,550.79

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Solution

The fourth proportional to 330,868.79, 496,303.23 and 81,550.79 is: 122,326.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,868.79 : 496,303.23 = 81,550.79 : x
  2. Step 2: Convert to fraction form
    330,868.79/496,303.23 = 81,550.79/x
  3. Step 3: Cross multiply
    330,868.79x = 496,303.23 × 81,550.79
  4. Step 4: Simplify right side
    330,868.79x = 40,473,917,596.78
  5. Step 5: Solve for x
    x = 40,473,917,596.78/330,868.79
  6. Step 6: Final answer
    x = 122,326.19

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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.