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Finding the Fourth Proportional to 392,364, 588,551.47 and 111,881.25

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Solution

The fourth proportional to 392,364, 588,551.47 and 111,881.25 is: 167,823.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,364 : 588,551.47 = 111,881.25 : x
  2. Step 2: Convert to fraction form
    392,364/588,551.47 = 111,881.25/x
  3. Step 3: Cross multiply
    392,364x = 588,551.47 × 111,881.25
  4. Step 4: Simplify right side
    392,364x = 65,847,873,873.23
  5. Step 5: Solve for x
    x = 65,847,873,873.23/392,364
  6. Step 6: Final answer
    x = 167,823.43

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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.