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Finding the Fourth Proportional to 297,916.60, 446,874.90 and 203,438.20

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Solution

The fourth proportional to 297,916.60, 446,874.90 and 203,438.20 is: 305,157.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,916.60 : 446,874.90 = 203,438.20 : x
  2. Step 2: Convert to fraction form
    297,916.60/446,874.90 = 203,438.20/x
  3. Step 3: Cross multiply
    297,916.60x = 446,874.90 × 203,438.20
  4. Step 4: Simplify right side
    297,916.60x = 90,911,425,281.18
  5. Step 5: Solve for x
    x = 90,911,425,281.18/297,916.60
  6. Step 6: Final answer
    x = 305,157.30

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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.