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Finding the Fourth Proportional to 387,957.44, 581,936.16 and 121,759.04

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Solution

The fourth proportional to 387,957.44, 581,936.16 and 121,759.04 is: 182,638.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,957.44 : 581,936.16 = 121,759.04 : x
  2. Step 2: Convert to fraction form
    387,957.44/581,936.16 = 121,759.04/x
  3. Step 3: Cross multiply
    387,957.44x = 581,936.16 × 121,759.04
  4. Step 4: Simplify right side
    387,957.44x = 70,855,988,182.89
  5. Step 5: Solve for x
    x = 70,855,988,182.89/387,957.44
  6. Step 6: Final answer
    x = 182,638.56

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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.