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Finding the Fourth Proportional to 216,000.90, 323,904.15 and 82,836.90

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Solution

The fourth proportional to 216,000.90, 323,904.15 and 82,836.90 is: 124,218.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,000.90 : 323,904.15 = 82,836.90 : x
  2. Step 2: Convert to fraction form
    216,000.90/323,904.15 = 82,836.90/x
  3. Step 3: Cross multiply
    216,000.90x = 323,904.15 × 82,836.90
  4. Step 4: Simplify right side
    216,000.90x = 26,831,215,683.14
  5. Step 5: Solve for x
    x = 26,831,215,683.14/216,000.90
  6. Step 6: Final answer
    x = 124,218.07

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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.