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Finding the Fourth Proportional to 297,672.20, 446,508.30 and 87,331.40

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Solution

The fourth proportional to 297,672.20, 446,508.30 and 87,331.40 is: 130,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,672.20 : 446,508.30 = 87,331.40 : x
  2. Step 2: Convert to fraction form
    297,672.20/446,508.30 = 87,331.40/x
  3. Step 3: Cross multiply
    297,672.20x = 446,508.30 × 87,331.40
  4. Step 4: Simplify right side
    297,672.20x = 38,994,194,950.62
  5. Step 5: Solve for x
    x = 38,994,194,950.62/297,672.20
  6. Step 6: Final answer
    x = 130,997.10

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1.5x scale

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.