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Finding the Fourth Proportional to 300,207.40, 450,165.66 and 122,643.88

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Solution

The fourth proportional to 300,207.40, 450,165.66 and 122,643.88 is: 183,906.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,207.40 : 450,165.66 = 122,643.88 : x
  2. Step 2: Convert to fraction form
    300,207.40/450,165.66 = 122,643.88/x
  3. Step 3: Cross multiply
    300,207.40x = 450,165.66 × 122,643.88
  4. Step 4: Simplify right side
    300,207.40x = 55,210,063,185.16
  5. Step 5: Solve for x
    x = 55,210,063,185.16/300,207.40
  6. Step 6: Final answer
    x = 183,906.40

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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.