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Finding the Fourth Proportional to 485,664.56, 670,200.53 and 267,881.86

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Solution

The fourth proportional to 485,664.56, 670,200.53 and 267,881.86 is: 369,667.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,664.56 : 670,200.53 = 267,881.86 : x
  2. Step 2: Convert to fraction form
    485,664.56/670,200.53 = 267,881.86/x
  3. Step 3: Cross multiply
    485,664.56x = 670,200.53 × 267,881.86
  4. Step 4: Simplify right side
    485,664.56x = 179,534,564,549.39
  5. Step 5: Solve for x
    x = 179,534,564,549.39/485,664.56
  6. Step 6: Final answer
    x = 369,667.83

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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.