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Finding the Fourth Proportional to 216,011.73, 324,019.52 and 66,252.72

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Solution

The fourth proportional to 216,011.73, 324,019.52 and 66,252.72 is: 99,379.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,011.73 : 324,019.52 = 66,252.72 : x
  2. Step 2: Convert to fraction form
    216,011.73/324,019.52 = 66,252.72/x
  3. Step 3: Cross multiply
    216,011.73x = 324,019.52 × 66,252.72
  4. Step 4: Simplify right side
    216,011.73x = 21,467,174,533.09
  5. Step 5: Solve for x
    x = 21,467,174,533.09/216,011.73
  6. Step 6: Final answer
    x = 99,379.67

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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.