Home / 220,971.53-304,942.79-125,480.36

Finding the Fourth Proportional to 220,971.53, 304,942.79 and 125,480.36

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Solution

The fourth proportional to 220,971.53, 304,942.79 and 125,480.36 is: 173,164.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,971.53 : 304,942.79 = 125,480.36 : x
  2. Step 2: Convert to fraction form
    220,971.53/304,942.79 = 125,480.36/x
  3. Step 3: Cross multiply
    220,971.53x = 304,942.79 × 125,480.36
  4. Step 4: Simplify right side
    220,971.53x = 38,264,331,068.60
  5. Step 5: Solve for x
    x = 38,264,331,068.60/220,971.53
  6. Step 6: Final answer
    x = 173,164.08

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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.