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Finding the Fourth Proportional to 300,114.10, 450,171.15 and 188,139.70

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Solution

The fourth proportional to 300,114.10, 450,171.15 and 188,139.70 is: 282,209.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,114.10 : 450,171.15 = 188,139.70 : x
  2. Step 2: Convert to fraction form
    300,114.10/450,171.15 = 188,139.70/x
  3. Step 3: Cross multiply
    300,114.10x = 450,171.15 × 188,139.70
  4. Step 4: Simplify right side
    300,114.10x = 84,695,065,109.66
  5. Step 5: Solve for x
    x = 84,695,065,109.66/300,114.10
  6. Step 6: Final answer
    x = 282,209.55

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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.