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Finding the Fourth Proportional to 395,633.58, 545,974.88 and 214,345.52

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Solution

The fourth proportional to 395,633.58, 545,974.88 and 214,345.52 is: 295,797.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,633.58 : 545,974.88 = 214,345.52 : x
  2. Step 2: Convert to fraction form
    395,633.58/545,974.88 = 214,345.52/x
  3. Step 3: Cross multiply
    395,633.58x = 545,974.88 × 214,345.52
  4. Step 4: Simplify right side
    395,633.58x = 117,027,267,988.33
  5. Step 5: Solve for x
    x = 117,027,267,988.33/395,633.58
  6. Step 6: Final answer
    x = 295,797.11

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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.