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Finding the Fourth Proportional to 395,282.94, 545,494.75 and 213,998.71

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Solution

The fourth proportional to 395,282.94, 545,494.75 and 213,998.71 is: 295,320.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,282.94 : 545,494.75 = 213,998.71 : x
  2. Step 2: Convert to fraction form
    395,282.94/545,494.75 = 213,998.71/x
  3. Step 3: Cross multiply
    395,282.94x = 545,494.75 × 213,998.71
  4. Step 4: Simplify right side
    395,282.94x = 116,735,173,139.58
  5. Step 5: Solve for x
    x = 116,735,173,139.58/395,282.94
  6. Step 6: Final answer
    x = 295,320.55

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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.