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Finding the Fourth Proportional to 199,404.60, 299,106.90 and 131,753.40

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Solution

The fourth proportional to 199,404.60, 299,106.90 and 131,753.40 is: 197,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,404.60 : 299,106.90 = 131,753.40 : x
  2. Step 2: Convert to fraction form
    199,404.60/299,106.90 = 131,753.40/x
  3. Step 3: Cross multiply
    199,404.60x = 299,106.90 × 131,753.40
  4. Step 4: Simplify right side
    199,404.60x = 39,408,351,038.46
  5. Step 5: Solve for x
    x = 39,408,351,038.46/199,404.60
  6. Step 6: Final answer
    x = 197,630.10

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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.