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Finding the Fourth Proportional to 313,267.93, 432,310.11 and 170,028

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Solution

The fourth proportional to 313,267.93, 432,310.11 and 170,028 is: 234,638.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,267.93 : 432,310.11 = 170,028 : x
  2. Step 2: Convert to fraction form
    313,267.93/432,310.11 = 170,028/x
  3. Step 3: Cross multiply
    313,267.93x = 432,310.11 × 170,028
  4. Step 4: Simplify right side
    313,267.93x = 73,504,823,383.08
  5. Step 5: Solve for x
    x = 73,504,823,383.08/313,267.93
  6. Step 6: Final answer
    x = 234,638.84

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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.