Home / 218,940.26-302,146.05-123,444.90

Finding the Fourth Proportional to 218,940.26, 302,146.05 and 123,444.90

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Solution

The fourth proportional to 218,940.26, 302,146.05 and 123,444.90 is: 170,358.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,940.26 : 302,146.05 = 123,444.90 : x
  2. Step 2: Convert to fraction form
    218,940.26/302,146.05 = 123,444.90/x
  3. Step 3: Cross multiply
    218,940.26x = 302,146.05 × 123,444.90
  4. Step 4: Simplify right side
    218,940.26x = 37,298,388,927.65
  5. Step 5: Solve for x
    x = 37,298,388,927.65/218,940.26
  6. Step 6: Final answer
    x = 170,358.75

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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.