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Finding the Fourth Proportional to 199,625.70, 299,438.55 and 99,801.30

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Solution

The fourth proportional to 199,625.70, 299,438.55 and 99,801.30 is: 149,701.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,625.70 : 299,438.55 = 99,801.30 : x
  2. Step 2: Convert to fraction form
    199,625.70/299,438.55 = 99,801.30/x
  3. Step 3: Cross multiply
    199,625.70x = 299,438.55 × 99,801.30
  4. Step 4: Simplify right side
    199,625.70x = 29,884,356,560.12
  5. Step 5: Solve for x
    x = 29,884,356,560.12/199,625.70
  6. Step 6: Final answer
    x = 149,701.95

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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.