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Finding the Fourth Proportional to 283,021.52, 390,625.52 and 162,243.84

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Solution

The fourth proportional to 283,021.52, 390,625.52 and 162,243.84 is: 223,928.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,021.52 : 390,625.52 = 162,243.84 : x
  2. Step 2: Convert to fraction form
    283,021.52/390,625.52 = 162,243.84/x
  3. Step 3: Cross multiply
    283,021.52x = 390,625.52 × 162,243.84
  4. Step 4: Simplify right side
    283,021.52x = 63,376,584,366.80
  5. Step 5: Solve for x
    x = 63,376,584,366.80/283,021.52
  6. Step 6: Final answer
    x = 223,928.50

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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.