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Finding the Fourth Proportional to 213,379.74, 320,270.52 and 108,274.14

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Solution

The fourth proportional to 213,379.74, 320,270.52 and 108,274.14 is: 162,513.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,379.74 : 320,270.52 = 108,274.14 : x
  2. Step 2: Convert to fraction form
    213,379.74/320,270.52 = 108,274.14/x
  3. Step 3: Cross multiply
    213,379.74x = 320,270.52 × 108,274.14
  4. Step 4: Simplify right side
    213,379.74x = 34,677,015,120.35
  5. Step 5: Solve for x
    x = 34,677,015,120.35/213,379.74
  6. Step 6: Final answer
    x = 162,513.16

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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.