Home / 226,512-312,586.78-124,539.20

Finding the Fourth Proportional to 226,512, 312,586.78 and 124,539.20

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Solution

The fourth proportional to 226,512, 312,586.78 and 124,539.20 is: 171,864.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,512 : 312,586.78 = 124,539.20 : x
  2. Step 2: Convert to fraction form
    226,512/312,586.78 = 124,539.20/x
  3. Step 3: Cross multiply
    226,512x = 312,586.78 × 124,539.20
  4. Step 4: Simplify right side
    226,512x = 38,929,307,511.78
  5. Step 5: Solve for x
    x = 38,929,307,511.78/226,512
  6. Step 6: Final answer
    x = 171,864.22

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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.