Home / 218,936.88-302,133.32-123,443.36

Finding the Fourth Proportional to 218,936.88, 302,133.32 and 123,443.36

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Solution

The fourth proportional to 218,936.88, 302,133.32 and 123,443.36 is: 170,352.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,936.88 : 302,133.32 = 123,443.36 : x
  2. Step 2: Convert to fraction form
    218,936.88/302,133.32 = 123,443.36/x
  3. Step 3: Cross multiply
    218,936.88x = 302,133.32 × 123,443.36
  4. Step 4: Simplify right side
    218,936.88x = 37,296,352,188.76
  5. Step 5: Solve for x
    x = 37,296,352,188.76/218,936.88
  6. Step 6: Final answer
    x = 170,352.08

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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.