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Finding the Fourth Proportional to 236,745, 326,706.17 and 129,315.06

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Solution

The fourth proportional to 236,745, 326,706.17 and 129,315.06 is: 178,453.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,745 : 326,706.17 = 129,315.06 : x
  2. Step 2: Convert to fraction form
    236,745/326,706.17 = 129,315.06/x
  3. Step 3: Cross multiply
    236,745x = 326,706.17 × 129,315.06
  4. Step 4: Simplify right side
    236,745x = 42,248,027,329.34
  5. Step 5: Solve for x
    x = 42,248,027,329.34/236,745
  6. Step 6: Final answer
    x = 178,453.73

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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.