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Finding the Fourth Proportional to 300,818.67, 451,228.02 and 142,961.01

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Solution

The fourth proportional to 300,818.67, 451,228.02 and 142,961.01 is: 214,441.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,818.67 : 451,228.02 = 142,961.01 : x
  2. Step 2: Convert to fraction form
    300,818.67/451,228.02 = 142,961.01/x
  3. Step 3: Cross multiply
    300,818.67x = 451,228.02 × 142,961.01
  4. Step 4: Simplify right side
    300,818.67x = 64,508,013,479.50
  5. Step 5: Solve for x
    x = 64,508,013,479.50/300,818.67
  6. Step 6: Final answer
    x = 214,441.52

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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.