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Finding the Fourth Proportional to 199,462.40, 299,193.60 and 189,620.90

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Solution

The fourth proportional to 199,462.40, 299,193.60 and 189,620.90 is: 284,431.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,462.40 : 299,193.60 = 189,620.90 : x
  2. Step 2: Convert to fraction form
    199,462.40/299,193.60 = 189,620.90/x
  3. Step 3: Cross multiply
    199,462.40x = 299,193.60 × 189,620.90
  4. Step 4: Simplify right side
    199,462.40x = 56,733,359,706.24
  5. Step 5: Solve for x
    x = 56,733,359,706.24/199,462.40
  6. Step 6: Final answer
    x = 284,431.35

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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.