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Finding the Fourth Proportional to 330,307.88, 455,825.32 and 179,404.88

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Solution

The fourth proportional to 330,307.88, 455,825.32 and 179,404.88 is: 247,578.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,307.88 : 455,825.32 = 179,404.88 : x
  2. Step 2: Convert to fraction form
    330,307.88/455,825.32 = 179,404.88/x
  3. Step 3: Cross multiply
    330,307.88x = 455,825.32 × 179,404.88
  4. Step 4: Simplify right side
    330,307.88x = 81,777,285,117.08
  5. Step 5: Solve for x
    x = 81,777,285,117.08/330,307.88
  6. Step 6: Final answer
    x = 247,578.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.