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Finding the Fourth Proportional to 228,072, 314,729.46 and 124,704.30

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Solution

The fourth proportional to 228,072, 314,729.46 and 124,704.30 is: 172,086.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,072 : 314,729.46 = 124,704.30 : x
  2. Step 2: Convert to fraction form
    228,072/314,729.46 = 124,704.30/x
  3. Step 3: Cross multiply
    228,072x = 314,729.46 × 124,704.30
  4. Step 4: Simplify right side
    228,072x = 39,248,116,998.68
  5. Step 5: Solve for x
    x = 39,248,116,998.68/228,072
  6. Step 6: Final answer
    x = 172,086.52

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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.