Home / 427,016.25-589,282.43-257,285.61

Finding the Fourth Proportional to 427,016.25, 589,282.43 and 257,285.61

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Solution

The fourth proportional to 427,016.25, 589,282.43 and 257,285.61 is: 355,054.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,016.25 : 589,282.43 = 257,285.61 : x
  2. Step 2: Convert to fraction form
    427,016.25/589,282.43 = 257,285.61/x
  3. Step 3: Cross multiply
    427,016.25x = 589,282.43 × 257,285.61
  4. Step 4: Simplify right side
    427,016.25x = 151,613,888,178.40
  5. Step 5: Solve for x
    x = 151,613,888,178.40/427,016.25
  6. Step 6: Final answer
    x = 355,054.14

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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.