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Finding the Fourth Proportional to 300,987.37, 415,360.74 and 165,027.07

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Solution

The fourth proportional to 300,987.37, 415,360.74 and 165,027.07 is: 227,736.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,987.37 : 415,360.74 = 165,027.07 : x
  2. Step 2: Convert to fraction form
    300,987.37/415,360.74 = 165,027.07/x
  3. Step 3: Cross multiply
    300,987.37x = 415,360.74 × 165,027.07
  4. Step 4: Simplify right side
    300,987.37x = 68,545,765,915.23
  5. Step 5: Solve for x
    x = 68,545,765,915.23/300,987.37
  6. Step 6: Final answer
    x = 227,736.35

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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.