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Finding the Fourth Proportional to 330,171.68, 455,638.74 and 179,268.68

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Solution

The fourth proportional to 330,171.68, 455,638.74 and 179,268.68 is: 247,391.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,171.68 : 455,638.74 = 179,268.68 : x
  2. Step 2: Convert to fraction form
    330,171.68/455,638.74 = 179,268.68/x
  3. Step 3: Cross multiply
    330,171.68x = 455,638.74 × 179,268.68
  4. Step 4: Simplify right side
    330,171.68x = 81,681,755,943.50
  5. Step 5: Solve for x
    x = 81,681,755,943.50/330,171.68
  6. Step 6: Final answer
    x = 247,391.77

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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.