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Finding the Fourth Proportional to 220,929, 304,863.30 and 124,125.28

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Solution

The fourth proportional to 220,929, 304,863.30 and 124,125.28 is: 171,282.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,929 : 304,863.30 = 124,125.28 : x
  2. Step 2: Convert to fraction form
    220,929/304,863.30 = 124,125.28/x
  3. Step 3: Cross multiply
    220,929x = 304,863.30 × 124,125.28
  4. Step 4: Simplify right side
    220,929x = 37,841,242,474.22
  5. Step 5: Solve for x
    x = 37,841,242,474.22/220,929
  6. Step 6: Final answer
    x = 171,282.37

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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.