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Finding the Fourth Proportional to 313,379.56, 469,969.62 and 102,968.92

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Solution

The fourth proportional to 313,379.56, 469,969.62 and 102,968.92 is: 154,420.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,379.56 : 469,969.62 = 102,968.92 : x
  2. Step 2: Convert to fraction form
    313,379.56/469,969.62 = 102,968.92/x
  3. Step 3: Cross multiply
    313,379.56x = 469,969.62 × 102,968.92
  4. Step 4: Simplify right side
    313,379.56x = 48,392,264,204.21
  5. Step 5: Solve for x
    x = 48,392,264,204.21/313,379.56
  6. Step 6: Final answer
    x = 154,420.61

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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.