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Finding the Fourth Proportional to 306,701.34, 423,310.77 and 179,408.22

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Solution

The fourth proportional to 306,701.34, 423,310.77 and 179,408.22 is: 247,620.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,701.34 : 423,310.77 = 179,408.22 : x
  2. Step 2: Convert to fraction form
    306,701.34/423,310.77 = 179,408.22/x
  3. Step 3: Cross multiply
    306,701.34x = 423,310.77 × 179,408.22
  4. Step 4: Simplify right side
    306,701.34x = 75,945,431,752.53
  5. Step 5: Solve for x
    x = 75,945,431,752.53/306,701.34
  6. Step 6: Final answer
    x = 247,620.15

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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.