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Finding the Fourth Proportional to 330,300.28, 455,816.67 and 179,397.28

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Solution

The fourth proportional to 330,300.28, 455,816.67 and 179,397.28 is: 247,569.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,300.28 : 455,816.67 = 179,397.28 : x
  2. Step 2: Convert to fraction form
    330,300.28/455,816.67 = 179,397.28/x
  3. Step 3: Cross multiply
    330,300.28x = 455,816.67 × 179,397.28
  4. Step 4: Simplify right side
    330,300.28x = 81,772,268,497.57
  5. Step 5: Solve for x
    x = 81,772,268,497.57/330,300.28
  6. Step 6: Final answer
    x = 247,569.48

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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.