Home / 279,668.10-385,940.01-152,343.69

Finding the Fourth Proportional to 279,668.10, 385,940.01 and 152,343.69

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Solution

The fourth proportional to 279,668.10, 385,940.01 and 152,343.69 is: 210,233.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,668.10 : 385,940.01 = 152,343.69 : x
  2. Step 2: Convert to fraction form
    279,668.10/385,940.01 = 152,343.69/x
  3. Step 3: Cross multiply
    279,668.10x = 385,940.01 × 152,343.69
  4. Step 4: Simplify right side
    279,668.10x = 58,795,524,480.32
  5. Step 5: Solve for x
    x = 58,795,524,480.32/279,668.10
  6. Step 6: Final answer
    x = 210,233.22

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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.