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Finding the Fourth Proportional to 300,115.60, 450,173.40 and 188,141.20

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Solution

The fourth proportional to 300,115.60, 450,173.40 and 188,141.20 is: 282,211.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,115.60 : 450,173.40 = 188,141.20 : x
  2. Step 2: Convert to fraction form
    300,115.60/450,173.40 = 188,141.20/x
  3. Step 3: Cross multiply
    300,115.60x = 450,173.40 × 188,141.20
  4. Step 4: Simplify right side
    300,115.60x = 84,696,163,684.08
  5. Step 5: Solve for x
    x = 84,696,163,684.08/300,115.60
  6. Step 6: Final answer
    x = 282,211.80

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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.