Home / 378,867.24-522,893.34-243,054.54

Finding the Fourth Proportional to 378,867.24, 522,893.34 and 243,054.54

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Solution

The fourth proportional to 378,867.24, 522,893.34 and 243,054.54 is: 335,451.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,867.24 : 522,893.34 = 243,054.54 : x
  2. Step 2: Convert to fraction form
    378,867.24/522,893.34 = 243,054.54/x
  3. Step 3: Cross multiply
    378,867.24x = 522,893.34 × 243,054.54
  4. Step 4: Simplify right side
    378,867.24x = 127,091,600,222.76
  5. Step 5: Solve for x
    x = 127,091,600,222.76/378,867.24
  6. Step 6: Final answer
    x = 335,451.54

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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.