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Finding the Fourth Proportional to 395,783.49, 546,179.82 and 214,499.85

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Solution

The fourth proportional to 395,783.49, 546,179.82 and 214,499.85 is: 296,009.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,783.49 : 546,179.82 = 214,499.85 : x
  2. Step 2: Convert to fraction form
    395,783.49/546,179.82 = 214,499.85/x
  3. Step 3: Cross multiply
    395,783.49x = 546,179.82 × 214,499.85
  4. Step 4: Simplify right side
    395,783.49x = 117,155,489,463.03
  5. Step 5: Solve for x
    x = 117,155,489,463.03/395,783.49
  6. Step 6: Final answer
    x = 296,009.04

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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.