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Finding the Fourth Proportional to 199,388.90, 299,083.35 and 133,033.70

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Solution

The fourth proportional to 199,388.90, 299,083.35 and 133,033.70 is: 199,550.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,388.90 : 299,083.35 = 133,033.70 : x
  2. Step 2: Convert to fraction form
    199,388.90/299,083.35 = 133,033.70/x
  3. Step 3: Cross multiply
    199,388.90x = 299,083.35 × 133,033.70
  4. Step 4: Simplify right side
    199,388.90x = 39,788,164,658.90
  5. Step 5: Solve for x
    x = 39,788,164,658.90/199,388.90
  6. Step 6: Final answer
    x = 199,550.55

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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.