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Finding the Fourth Proportional to 330,632.82, 456,282.72 and 201,578.76

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Solution

The fourth proportional to 330,632.82, 456,282.72 and 201,578.76 is: 278,184.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,632.82 : 456,282.72 = 201,578.76 : x
  2. Step 2: Convert to fraction form
    330,632.82/456,282.72 = 201,578.76/x
  3. Step 3: Cross multiply
    330,632.82x = 456,282.72 × 201,578.76
  4. Step 4: Simplify right side
    330,632.82x = 91,976,904,907.03
  5. Step 5: Solve for x
    x = 91,976,904,907.03/330,632.82
  6. Step 6: Final answer
    x = 278,184.44

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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.