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Finding the Fourth Proportional to 330,877.77, 496,316.75 and 81,559.77

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Solution

The fourth proportional to 330,877.77, 496,316.75 and 81,559.77 is: 122,339.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,877.77 : 496,316.75 = 81,559.77 : x
  2. Step 2: Convert to fraction form
    330,877.77/496,316.75 = 81,559.77/x
  3. Step 3: Cross multiply
    330,877.77x = 496,316.75 × 81,559.77
  4. Step 4: Simplify right side
    330,877.77x = 40,479,479,569.35
  5. Step 5: Solve for x
    x = 40,479,479,569.35/330,877.77
  6. Step 6: Final answer
    x = 122,339.68

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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.