Home / 279,060.64-385,101.78-151,736.32

Finding the Fourth Proportional to 279,060.64, 385,101.78 and 151,736.32

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Solution

The fourth proportional to 279,060.64, 385,101.78 and 151,736.32 is: 209,395.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,060.64 : 385,101.78 = 151,736.32 : x
  2. Step 2: Convert to fraction form
    279,060.64/385,101.78 = 151,736.32/x
  3. Step 3: Cross multiply
    279,060.64x = 385,101.78 × 151,736.32
  4. Step 4: Simplify right side
    279,060.64x = 58,433,926,922.65
  5. Step 5: Solve for x
    x = 58,433,926,922.65/279,060.64
  6. Step 6: Final answer
    x = 209,395.09

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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.