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Finding the Fourth Proportional to 330,004.65, 455,406.60 and 179,101.65

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Solution

The fourth proportional to 330,004.65, 455,406.60 and 179,101.65 is: 247,160.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,004.65 : 455,406.60 = 179,101.65 : x
  2. Step 2: Convert to fraction form
    330,004.65/455,406.60 = 179,101.65/x
  3. Step 3: Cross multiply
    330,004.65x = 455,406.60 × 179,101.65
  4. Step 4: Simplify right side
    330,004.65x = 81,564,073,480.89
  5. Step 5: Solve for x
    x = 81,564,073,480.89/330,004.65
  6. Step 6: Final answer
    x = 247,160.38

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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.