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Finding the Fourth Proportional to 542,667.60, 814,039.40 and 163,591.45

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Solution

The fourth proportional to 542,667.60, 814,039.40 and 163,591.45 is: 245,398.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,667.60 : 814,039.40 = 163,591.45 : x
  2. Step 2: Convert to fraction form
    542,667.60/814,039.40 = 163,591.45/x
  3. Step 3: Cross multiply
    542,667.60x = 814,039.40 × 163,591.45
  4. Step 4: Simplify right side
    542,667.60x = 133,169,884,177.01
  5. Step 5: Solve for x
    x = 133,169,884,177.01/542,667.60
  6. Step 6: Final answer
    x = 245,398.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.