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Finding the Fourth Proportional to 225,090.54, 310,720.59 and 140,249.52

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Solution

The fourth proportional to 225,090.54, 310,720.59 and 140,249.52 is: 193,603.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,090.54 : 310,720.59 = 140,249.52 : x
  2. Step 2: Convert to fraction form
    225,090.54/310,720.59 = 140,249.52/x
  3. Step 3: Cross multiply
    225,090.54x = 310,720.59 × 140,249.52
  4. Step 4: Simplify right side
    225,090.54x = 43,578,413,601.62
  5. Step 5: Solve for x
    x = 43,578,413,601.62/225,090.54
  6. Step 6: Final answer
    x = 193,603.93

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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.