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Finding the Fourth Proportional to 254,820.60, 382,133.70 and 77,268.60

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Solution

The fourth proportional to 254,820.60, 382,133.70 and 77,268.60 is: 115,873.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,820.60 : 382,133.70 = 77,268.60 : x
  2. Step 2: Convert to fraction form
    254,820.60/382,133.70 = 77,268.60/x
  3. Step 3: Cross multiply
    254,820.60x = 382,133.70 × 77,268.60
  4. Step 4: Simplify right side
    254,820.60x = 29,526,936,011.82
  5. Step 5: Solve for x
    x = 29,526,936,011.82/254,820.60
  6. Step 6: Final answer
    x = 115,873.43

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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.