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Finding the Fourth Proportional to 221,439.84, 331,998.84 and 88,280.16

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Solution

The fourth proportional to 221,439.84, 331,998.84 and 88,280.16 is: 132,356.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,439.84 : 331,998.84 = 88,280.16 : x
  2. Step 2: Convert to fraction form
    221,439.84/331,998.84 = 88,280.16/x
  3. Step 3: Cross multiply
    221,439.84x = 331,998.84 × 88,280.16
  4. Step 4: Simplify right side
    221,439.84x = 29,308,910,715.01
  5. Step 5: Solve for x
    x = 29,308,910,715.01/221,439.84
  6. Step 6: Final answer
    x = 132,356.09

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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.