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Finding the Fourth Proportional to 300,134.76, 450,225.72 and 100,455.84

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Solution

The fourth proportional to 300,134.76, 450,225.72 and 100,455.84 is: 150,691.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,134.76 : 450,225.72 = 100,455.84 : x
  2. Step 2: Convert to fraction form
    300,134.76/450,225.72 = 100,455.84/x
  3. Step 3: Cross multiply
    300,134.76x = 450,225.72 × 100,455.84
  4. Step 4: Simplify right side
    300,134.76x = 45,227,802,892.20
  5. Step 5: Solve for x
    x = 45,227,802,892.20/300,134.76
  6. Step 6: Final answer
    x = 150,691.65

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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.