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Finding the Fourth Proportional to 242,848, 363,584.88 and 128,735.68

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Solution

The fourth proportional to 242,848, 363,584.88 and 128,735.68 is: 192,739.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,848 : 363,584.88 = 128,735.68 : x
  2. Step 2: Convert to fraction form
    242,848/363,584.88 = 128,735.68/x
  3. Step 3: Cross multiply
    242,848x = 363,584.88 × 128,735.68
  4. Step 4: Simplify right side
    242,848x = 46,806,346,764.52
  5. Step 5: Solve for x
    x = 46,806,346,764.52/242,848
  6. Step 6: Final answer
    x = 192,739.27

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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.