Home / 279,116.54-385,170.09-151,792.28

Finding the Fourth Proportional to 279,116.54, 385,170.09 and 151,792.28

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Solution

The fourth proportional to 279,116.54, 385,170.09 and 151,792.28 is: 209,467.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,116.54 : 385,170.09 = 151,792.28 : x
  2. Step 2: Convert to fraction form
    279,116.54/385,170.09 = 151,792.28/x
  3. Step 3: Cross multiply
    279,116.54x = 385,170.09 × 151,792.28
  4. Step 4: Simplify right side
    279,116.54x = 58,465,846,148.91
  5. Step 5: Solve for x
    x = 58,465,846,148.91/279,116.54
  6. Step 6: Final answer
    x = 209,467.51

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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.