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Finding the Fourth Proportional to 330,352.81, 455,808.46 and 194,392.69

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Solution

The fourth proportional to 330,352.81, 455,808.46 and 194,392.69 is: 268,215.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,352.81 : 455,808.46 = 194,392.69 : x
  2. Step 2: Convert to fraction form
    330,352.81/455,808.46 = 194,392.69/x
  3. Step 3: Cross multiply
    330,352.81x = 455,808.46 × 194,392.69
  4. Step 4: Simplify right side
    330,352.81x = 88,605,832,664.16
  5. Step 5: Solve for x
    x = 88,605,832,664.16/330,352.81
  6. Step 6: Final answer
    x = 268,215.77

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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.