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Finding the Fourth Proportional to 442,611.90, 663,043.05 and 242,574.30

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Solution

The fourth proportional to 442,611.90, 663,043.05 and 242,574.30 is: 363,382.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,611.90 : 663,043.05 = 242,574.30 : x
  2. Step 2: Convert to fraction form
    442,611.90/663,043.05 = 242,574.30/x
  3. Step 3: Cross multiply
    442,611.90x = 663,043.05 × 242,574.30
  4. Step 4: Simplify right side
    442,611.90x = 160,837,203,723.62
  5. Step 5: Solve for x
    x = 160,837,203,723.62/442,611.90
  6. Step 6: Final answer
    x = 363,382.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.