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Finding the Fourth Proportional to 330,282.76, 455,789.80 and 179,378.68

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Solution

The fourth proportional to 330,282.76, 455,789.80 and 179,378.68 is: 247,542.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,282.76 : 455,789.80 = 179,378.68 : x
  2. Step 2: Convert to fraction form
    330,282.76/455,789.80 = 179,378.68/x
  3. Step 3: Cross multiply
    330,282.76x = 455,789.80 × 179,378.68
  4. Step 4: Simplify right side
    330,282.76x = 81,758,972,681.46
  5. Step 5: Solve for x
    x = 81,758,972,681.46/330,282.76
  6. Step 6: Final answer
    x = 247,542.36

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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.