Home / 394,979.81-545,058.65-225,268.61

Finding the Fourth Proportional to 394,979.81, 545,058.65 and 225,268.61

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Solution

The fourth proportional to 394,979.81, 545,058.65 and 225,268.61 is: 310,862.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,979.81 : 545,058.65 = 225,268.61 : x
  2. Step 2: Convert to fraction form
    394,979.81/545,058.65 = 225,268.61/x
  3. Step 3: Cross multiply
    394,979.81x = 545,058.65 × 225,268.61
  4. Step 4: Simplify right side
    394,979.81x = 122,784,600,602.34
  5. Step 5: Solve for x
    x = 122,784,600,602.34/394,979.81
  6. Step 6: Final answer
    x = 310,862.98

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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.