Home / 220,477.98-304,236.32-129,828

Finding the Fourth Proportional to 220,477.98, 304,236.32 and 129,828

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Solution

The fourth proportional to 220,477.98, 304,236.32 and 129,828 is: 179,148.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,477.98 : 304,236.32 = 129,828 : x
  2. Step 2: Convert to fraction form
    220,477.98/304,236.32 = 129,828/x
  3. Step 3: Cross multiply
    220,477.98x = 304,236.32 × 129,828
  4. Step 4: Simplify right side
    220,477.98x = 39,498,392,303.82
  5. Step 5: Solve for x
    x = 39,498,392,303.82/220,477.98
  6. Step 6: Final answer
    x = 179,148.92

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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.