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Finding the Fourth Proportional to 216,513, 324,904.82 and 104,205.08

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Solution

The fourth proportional to 216,513, 324,904.82 and 104,205.08 is: 156,372.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,513 : 324,904.82 = 104,205.08 : x
  2. Step 2: Convert to fraction form
    216,513/324,904.82 = 104,205.08/x
  3. Step 3: Cross multiply
    216,513x = 324,904.82 × 104,205.08
  4. Step 4: Simplify right side
    216,513x = 33,856,733,637.88
  5. Step 5: Solve for x
    x = 33,856,733,637.88/216,513
  6. Step 6: Final answer
    x = 156,372.75

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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.