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Finding the Fourth Proportional to 300,887.58, 415,267.39 and 186,203.16

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Solution

The fourth proportional to 300,887.58, 415,267.39 and 186,203.16 is: 256,986.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,887.58 : 415,267.39 = 186,203.16 : x
  2. Step 2: Convert to fraction form
    300,887.58/415,267.39 = 186,203.16/x
  3. Step 3: Cross multiply
    300,887.58x = 415,267.39 × 186,203.16
  4. Step 4: Simplify right side
    300,887.58x = 77,324,100,262.95
  5. Step 5: Solve for x
    x = 77,324,100,262.95/300,887.58
  6. Step 6: Final answer
    x = 256,986.68

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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.