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Finding the Fourth Proportional to 300,987.64, 451,808.70 and 226,321.84

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Solution

The fourth proportional to 300,987.64, 451,808.70 and 226,321.84 is: 339,728.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,987.64 : 451,808.70 = 226,321.84 : x
  2. Step 2: Convert to fraction form
    300,987.64/451,808.70 = 226,321.84/x
  3. Step 3: Cross multiply
    300,987.64x = 451,808.70 × 226,321.84
  4. Step 4: Simplify right side
    300,987.64x = 102,254,176,312.01
  5. Step 5: Solve for x
    x = 102,254,176,312.01/300,987.64
  6. Step 6: Final answer
    x = 339,728.82

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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.