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Finding the Fourth Proportional to 228,882.34, 315,795.03 and 136,964.63

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Solution

The fourth proportional to 228,882.34, 315,795.03 and 136,964.63 is: 188,973.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,882.34 : 315,795.03 = 136,964.63 : x
  2. Step 2: Convert to fraction form
    228,882.34/315,795.03 = 136,964.63/x
  3. Step 3: Cross multiply
    228,882.34x = 315,795.03 × 136,964.63
  4. Step 4: Simplify right side
    228,882.34x = 43,252,750,176.94
  5. Step 5: Solve for x
    x = 43,252,750,176.94/228,882.34
  6. Step 6: Final answer
    x = 188,973.73

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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.