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Finding the Fourth Proportional to 330,146.88, 455,602.69 and 179,243.88

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Solution

The fourth proportional to 330,146.88, 455,602.69 and 179,243.88 is: 247,356.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,146.88 : 455,602.69 = 179,243.88 : x
  2. Step 2: Convert to fraction form
    330,146.88/455,602.69 = 179,243.88/x
  3. Step 3: Cross multiply
    330,146.88x = 455,602.69 × 179,243.88
  4. Step 4: Simplify right side
    330,146.88x = 81,663,993,894.04
  5. Step 5: Solve for x
    x = 81,663,993,894.04/330,146.88
  6. Step 6: Final answer
    x = 247,356.55

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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.