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Finding the Fourth Proportional to 330,852.75, 496,279.13 and 81,534.75

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Solution

The fourth proportional to 330,852.75, 496,279.13 and 81,534.75 is: 122,302.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,852.75 : 496,279.13 = 81,534.75 : x
  2. Step 2: Convert to fraction form
    330,852.75/496,279.13 = 81,534.75/x
  3. Step 3: Cross multiply
    330,852.75x = 496,279.13 × 81,534.75
  4. Step 4: Simplify right side
    330,852.75x = 40,463,994,387.09
  5. Step 5: Solve for x
    x = 40,463,994,387.09/330,852.75
  6. Step 6: Final answer
    x = 122,302.13

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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.