Home / 239,997.72-331,153.56-155,065.58

Finding the Fourth Proportional to 239,997.72, 331,153.56 and 155,065.58

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Solution

The fourth proportional to 239,997.72, 331,153.56 and 155,065.58 is: 213,962.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,997.72 : 331,153.56 = 155,065.58 : x
  2. Step 2: Convert to fraction form
    239,997.72/331,153.56 = 155,065.58/x
  3. Step 3: Cross multiply
    239,997.72x = 331,153.56 × 155,065.58
  4. Step 4: Simplify right side
    239,997.72x = 51,350,518,850.46
  5. Step 5: Solve for x
    x = 51,350,518,850.46/239,997.72
  6. Step 6: Final answer
    x = 213,962.53

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1.5x scale

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.