Home / 218,844.74-302,008.05-123,351.45

Finding the Fourth Proportional to 218,844.74, 302,008.05 and 123,351.45

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Solution

The fourth proportional to 218,844.74, 302,008.05 and 123,351.45 is: 170,226.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,844.74 : 302,008.05 = 123,351.45 : x
  2. Step 2: Convert to fraction form
    218,844.74/302,008.05 = 123,351.45/x
  3. Step 3: Cross multiply
    218,844.74x = 302,008.05 × 123,351.45
  4. Step 4: Simplify right side
    218,844.74x = 37,253,130,879.17
  5. Step 5: Solve for x
    x = 37,253,130,879.17/218,844.74
  6. Step 6: Final answer
    x = 170,226.30

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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.