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Finding the Fourth Proportional to 300,806.07, 415,112.39 and 166,670.07

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Solution

The fourth proportional to 300,806.07, 415,112.39 and 166,670.07 is: 230,004.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,806.07 : 415,112.39 = 166,670.07 : x
  2. Step 2: Convert to fraction form
    300,806.07/415,112.39 = 166,670.07/x
  3. Step 3: Cross multiply
    300,806.07x = 415,112.39 × 166,670.07
  4. Step 4: Simplify right side
    300,806.07x = 69,186,810,265.82
  5. Step 5: Solve for x
    x = 69,186,810,265.82/300,806.07
  6. Step 6: Final answer
    x = 230,004.70

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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.