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Finding the Fourth Proportional to 301,206.36, 451,812.78 and 90,846.12

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Solution

The fourth proportional to 301,206.36, 451,812.78 and 90,846.12 is: 136,270.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,206.36 : 451,812.78 = 90,846.12 : x
  2. Step 2: Convert to fraction form
    301,206.36/451,812.78 = 90,846.12/x
  3. Step 3: Cross multiply
    301,206.36x = 451,812.78 × 90,846.12
  4. Step 4: Simplify right side
    301,206.36x = 41,045,438,029.41
  5. Step 5: Solve for x
    x = 41,045,438,029.41/301,206.36
  6. Step 6: Final answer
    x = 136,270.16

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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.