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Finding the Fourth Proportional to 330,378.80, 455,900.28 and 179,472.56

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Solution

The fourth proportional to 330,378.80, 455,900.28 and 179,472.56 is: 247,659.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,378.80 : 455,900.28 = 179,472.56 : x
  2. Step 2: Convert to fraction form
    330,378.80/455,900.28 = 179,472.56/x
  3. Step 3: Cross multiply
    330,378.80x = 455,900.28 × 179,472.56
  4. Step 4: Simplify right side
    330,378.80x = 81,821,590,356.32
  5. Step 5: Solve for x
    x = 81,821,590,356.32/330,378.80
  6. Step 6: Final answer
    x = 247,659.93

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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.