Home / 279,004.31-385,056-158,132.60

Finding the Fourth Proportional to 279,004.31, 385,056 and 158,132.60

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Solution

The fourth proportional to 279,004.31, 385,056 and 158,132.60 is: 218,240.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,004.31 : 385,056 = 158,132.60 : x
  2. Step 2: Convert to fraction form
    279,004.31/385,056 = 158,132.60/x
  3. Step 3: Cross multiply
    279,004.31x = 385,056 × 158,132.60
  4. Step 4: Simplify right side
    279,004.31x = 60,889,904,500.32
  5. Step 5: Solve for x
    x = 60,889,904,500.32/279,004.31
  6. Step 6: Final answer
    x = 218,240.02

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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.