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Finding the Fourth Proportional to 308,019.49, 461,759.29 and 148,015.73

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Solution

The fourth proportional to 308,019.49, 461,759.29 and 148,015.73 is: 221,893.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,019.49 : 461,759.29 = 148,015.73 : x
  2. Step 2: Convert to fraction form
    308,019.49/461,759.29 = 148,015.73/x
  3. Step 3: Cross multiply
    308,019.49x = 461,759.29 × 148,015.73
  4. Step 4: Simplify right side
    308,019.49x = 68,347,638,393.63
  5. Step 5: Solve for x
    x = 68,347,638,393.63/308,019.49
  6. Step 6: Final answer
    x = 221,893.88

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1.5x scale

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.