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Finding the Fourth Proportional to 199,423.90, 299,135.85 and 133,068.70

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Solution

The fourth proportional to 199,423.90, 299,135.85 and 133,068.70 is: 199,603.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,423.90 : 299,135.85 = 133,068.70 : x
  2. Step 2: Convert to fraction form
    199,423.90/299,135.85 = 133,068.70/x
  3. Step 3: Cross multiply
    199,423.90x = 299,135.85 × 133,068.70
  4. Step 4: Simplify right side
    199,423.90x = 39,805,618,682.90
  5. Step 5: Solve for x
    x = 39,805,618,682.90/199,423.90
  6. Step 6: Final answer
    x = 199,603.05

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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.