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Finding the Fourth Proportional to 297,952.20, 446,939.10 and 87,611.40

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Solution

The fourth proportional to 297,952.20, 446,939.10 and 87,611.40 is: 131,420.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,952.20 : 446,939.10 = 87,611.40 : x
  2. Step 2: Convert to fraction form
    297,952.20/446,939.10 = 87,611.40/x
  3. Step 3: Cross multiply
    297,952.20x = 446,939.10 × 87,611.40
  4. Step 4: Simplify right side
    297,952.20x = 39,156,960,265.74
  5. Step 5: Solve for x
    x = 39,156,960,265.74/297,952.20
  6. Step 6: Final answer
    x = 131,420.28

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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.