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Finding the Fourth Proportional to 216,707.49, 325,092.33 and 66,960.86

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Solution

The fourth proportional to 216,707.49, 325,092.33 and 66,960.86 is: 100,450.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,707.49 : 325,092.33 = 66,960.86 : x
  2. Step 2: Convert to fraction form
    216,707.49/325,092.33 = 66,960.86/x
  3. Step 3: Cross multiply
    216,707.49x = 325,092.33 × 66,960.86
  4. Step 4: Simplify right side
    216,707.49x = 21,768,460,370.74
  5. Step 5: Solve for x
    x = 21,768,460,370.74/216,707.49
  6. Step 6: Final answer
    x = 100,450.89

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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.