Home / 279,090.36-385,142.04-151,767

Finding the Fourth Proportional to 279,090.36, 385,142.04 and 151,767

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Solution

The fourth proportional to 279,090.36, 385,142.04 and 151,767 is: 209,437.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,090.36 : 385,142.04 = 151,767 : x
  2. Step 2: Convert to fraction form
    279,090.36/385,142.04 = 151,767/x
  3. Step 3: Cross multiply
    279,090.36x = 385,142.04 × 151,767
  4. Step 4: Simplify right side
    279,090.36x = 58,451,851,984.68
  5. Step 5: Solve for x
    x = 58,451,851,984.68/279,090.36
  6. Step 6: Final answer
    x = 209,437.02

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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.