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Finding the Fourth Proportional to 442,611.40, 663,042.30 and 242,573.80

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Solution

The fourth proportional to 442,611.40, 663,042.30 and 242,573.80 is: 363,381.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,611.40 : 663,042.30 = 242,573.80 : x
  2. Step 2: Convert to fraction form
    442,611.40/663,042.30 = 242,573.80/x
  3. Step 3: Cross multiply
    442,611.40x = 663,042.30 × 242,573.80
  4. Step 4: Simplify right side
    442,611.40x = 160,836,690,271.74
  5. Step 5: Solve for x
    x = 160,836,690,271.74/442,611.40
  6. Step 6: Final answer
    x = 363,381.26

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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.