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Finding the Fourth Proportional to 345,401.44, 518,101.44 and 108,764.80

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Solution

The fourth proportional to 345,401.44, 518,101.44 and 108,764.80 is: 163,146.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,401.44 : 518,101.44 = 108,764.80 : x
  2. Step 2: Convert to fraction form
    345,401.44/518,101.44 = 108,764.80/x
  3. Step 3: Cross multiply
    345,401.44x = 518,101.44 × 108,764.80
  4. Step 4: Simplify right side
    345,401.44x = 56,351,199,501.31
  5. Step 5: Solve for x
    x = 56,351,199,501.31/345,401.44
  6. Step 6: Final answer
    x = 163,146.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.