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Finding the Fourth Proportional to 395,093.84, 545,227.34 and 213,805.49

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Solution

The fourth proportional to 395,093.84, 545,227.34 and 213,805.49 is: 295,050.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,093.84 : 545,227.34 = 213,805.49 : x
  2. Step 2: Convert to fraction form
    395,093.84/545,227.34 = 213,805.49/x
  3. Step 3: Cross multiply
    395,093.84x = 545,227.34 × 213,805.49
  4. Step 4: Simplify right side
    395,093.84x = 116,572,594,794.93
  5. Step 5: Solve for x
    x = 116,572,594,794.93/395,093.84
  6. Step 6: Final answer
    x = 295,050.40

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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.