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Finding the Fourth Proportional to 300,390.30, 414,538.76 and 164,424.96

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Solution

The fourth proportional to 300,390.30, 414,538.76 and 164,424.96 is: 226,906.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,390.30 : 414,538.76 = 164,424.96 : x
  2. Step 2: Convert to fraction form
    300,390.30/414,538.76 = 164,424.96/x
  3. Step 3: Cross multiply
    300,390.30x = 414,538.76 × 164,424.96
  4. Step 4: Simplify right side
    300,390.30x = 68,160,519,031.45
  5. Step 5: Solve for x
    x = 68,160,519,031.45/300,390.30
  6. Step 6: Final answer
    x = 226,906.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.