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Finding the Fourth Proportional to 313,209.61, 432,229.54 and 169,969.65

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Solution

The fourth proportional to 313,209.61, 432,229.54 and 169,969.65 is: 234,558.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,209.61 : 432,229.54 = 169,969.65 : x
  2. Step 2: Convert to fraction form
    313,209.61/432,229.54 = 169,969.65/x
  3. Step 3: Cross multiply
    313,209.61x = 432,229.54 × 169,969.65
  4. Step 4: Simplify right side
    313,209.61x = 73,465,904,885.73
  5. Step 5: Solve for x
    x = 73,465,904,885.73/313,209.61
  6. Step 6: Final answer
    x = 234,558.27

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1.5x scale

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.