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Finding the Fourth Proportional to 199,425.90, 299,138.85 and 133,070.70

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Solution

The fourth proportional to 199,425.90, 299,138.85 and 133,070.70 is: 199,606.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,425.90 : 299,138.85 = 133,070.70 : x
  2. Step 2: Convert to fraction form
    199,425.90/299,138.85 = 133,070.70/x
  3. Step 3: Cross multiply
    199,425.90x = 299,138.85 × 133,070.70
  4. Step 4: Simplify right side
    199,425.90x = 39,806,616,166.70
  5. Step 5: Solve for x
    x = 39,806,616,166.70/199,425.90
  6. Step 6: Final answer
    x = 199,606.05

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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.