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Finding the Fourth Proportional to 300,765.13, 415,055.97 and 179,911.51

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Solution

The fourth proportional to 300,765.13, 415,055.97 and 179,911.51 is: 248,277.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,765.13 : 415,055.97 = 179,911.51 : x
  2. Step 2: Convert to fraction form
    300,765.13/415,055.97 = 179,911.51/x
  3. Step 3: Cross multiply
    300,765.13x = 415,055.97 × 179,911.51
  4. Step 4: Simplify right side
    300,765.13x = 74,673,343,322.38
  5. Step 5: Solve for x
    x = 74,673,343,322.38/300,765.13
  6. Step 6: Final answer
    x = 248,277.93

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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.