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Finding the Fourth Proportional to 330,357.58, 455,983.50 and 194,435.13

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Solution

The fourth proportional to 330,357.58, 455,983.50 and 194,435.13 is: 268,373.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,357.58 : 455,983.50 = 194,435.13 : x
  2. Step 2: Convert to fraction form
    330,357.58/455,983.50 = 194,435.13/x
  3. Step 3: Cross multiply
    330,357.58x = 455,983.50 × 194,435.13
  4. Step 4: Simplify right side
    330,357.58x = 88,659,208,820.44
  5. Step 5: Solve for x
    x = 88,659,208,820.44/330,357.58
  6. Step 6: Final answer
    x = 268,373.47

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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.