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Finding the Fourth Proportional to 330,003.45, 455,404.95 and 179,100.45

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Solution

The fourth proportional to 330,003.45, 455,404.95 and 179,100.45 is: 247,158.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,003.45 : 455,404.95 = 179,100.45 : x
  2. Step 2: Convert to fraction form
    330,003.45/455,404.95 = 179,100.45/x
  3. Step 3: Cross multiply
    330,003.45x = 455,404.95 × 179,100.45
  4. Step 4: Simplify right side
    330,003.45x = 81,563,231,477.23
  5. Step 5: Solve for x
    x = 81,563,231,477.23/330,003.45
  6. Step 6: Final answer
    x = 247,158.72

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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.