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Finding the Fourth Proportional to 153,338.05, 230,105.47 and 74,409.22

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Solution

The fourth proportional to 153,338.05, 230,105.47 and 74,409.22 is: 111,661.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,338.05 : 230,105.47 = 74,409.22 : x
  2. Step 2: Convert to fraction form
    153,338.05/230,105.47 = 74,409.22/x
  3. Step 3: Cross multiply
    153,338.05x = 230,105.47 × 74,409.22
  4. Step 4: Simplify right side
    153,338.05x = 17,121,968,540.43
  5. Step 5: Solve for x
    x = 17,121,968,540.43/153,338.05
  6. Step 6: Final answer
    x = 111,661.58

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1.5x scale

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.