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Finding the Fourth Proportional to 216,477.46, 324,746.76 and 66,729.92

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Solution

The fourth proportional to 216,477.46, 324,746.76 and 66,729.92 is: 100,104.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,477.46 : 324,746.76 = 66,729.92 : x
  2. Step 2: Convert to fraction form
    216,477.46/324,746.76 = 66,729.92/x
  3. Step 3: Cross multiply
    216,477.46x = 324,746.76 × 66,729.92
  4. Step 4: Simplify right side
    216,477.46x = 21,670,325,315.06
  5. Step 5: Solve for x
    x = 21,670,325,315.06/216,477.46
  6. Step 6: Final answer
    x = 100,104.31

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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.