Home / 279,116.28-385,176.84-151,789.16

Finding the Fourth Proportional to 279,116.28, 385,176.84 and 151,789.16

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Solution

The fourth proportional to 279,116.28, 385,176.84 and 151,789.16 is: 209,467.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,116.28 : 385,176.84 = 151,789.16 : x
  2. Step 2: Convert to fraction form
    279,116.28/385,176.84 = 151,789.16/x
  3. Step 3: Cross multiply
    279,116.28x = 385,176.84 × 151,789.16
  4. Step 4: Simplify right side
    279,116.28x = 58,465,668,995.05
  5. Step 5: Solve for x
    x = 58,465,668,995.05/279,116.28
  6. Step 6: Final answer
    x = 209,467.07

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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.