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Finding the Fourth Proportional to 199,484.70, 298,977.57 and 99,672.90

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Solution

The fourth proportional to 199,484.70, 298,977.57 and 99,672.90 is: 149,384.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,484.70 : 298,977.57 = 99,672.90 : x
  2. Step 2: Convert to fraction form
    199,484.70/298,977.57 = 99,672.90/x
  3. Step 3: Cross multiply
    199,484.70x = 298,977.57 × 99,672.90
  4. Step 4: Simplify right side
    199,484.70x = 29,799,961,436.85
  5. Step 5: Solve for x
    x = 29,799,961,436.85/199,484.70
  6. Step 6: Final answer
    x = 149,384.70

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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.