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Finding the Fourth Proportional to 330,611.63, 456,293.90 and 201,624.93

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Solution

The fourth proportional to 330,611.63, 456,293.90 and 201,624.93 is: 278,272.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,611.63 : 456,293.90 = 201,624.93 : x
  2. Step 2: Convert to fraction form
    330,611.63/456,293.90 = 201,624.93/x
  3. Step 3: Cross multiply
    330,611.63x = 456,293.90 × 201,624.93
  4. Step 4: Simplify right side
    330,611.63x = 92,000,226,150.99
  5. Step 5: Solve for x
    x = 92,000,226,150.99/330,611.63
  6. Step 6: Final answer
    x = 278,272.81

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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.