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Finding the Fourth Proportional to 216,737.87, 299,086.23 and 121,226.12

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Solution

The fourth proportional to 216,737.87, 299,086.23 and 121,226.12 is: 167,285.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,737.87 : 299,086.23 = 121,226.12 : x
  2. Step 2: Convert to fraction form
    216,737.87/299,086.23 = 121,226.12/x
  3. Step 3: Cross multiply
    216,737.87x = 299,086.23 × 121,226.12
  4. Step 4: Simplify right side
    216,737.87x = 36,257,061,712.90
  5. Step 5: Solve for x
    x = 36,257,061,712.90/216,737.87
  6. Step 6: Final answer
    x = 167,285.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.