Home / 309,174.57-426,656.97-173,206.05

Finding the Fourth Proportional to 309,174.57, 426,656.97 and 173,206.05

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Solution

The fourth proportional to 309,174.57, 426,656.97 and 173,206.05 is: 239,022.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,174.57 : 426,656.97 = 173,206.05 : x
  2. Step 2: Convert to fraction form
    309,174.57/426,656.97 = 173,206.05/x
  3. Step 3: Cross multiply
    309,174.57x = 426,656.97 × 173,206.05
  4. Step 4: Simplify right side
    309,174.57x = 73,899,566,878.70
  5. Step 5: Solve for x
    x = 73,899,566,878.70/309,174.57
  6. Step 6: Final answer
    x = 239,022.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.