Home / 288,936.10-433,450.32-89,209.54

Finding the Fourth Proportional to 288,936.10, 433,450.32 and 89,209.54

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Solution

The fourth proportional to 288,936.10, 433,450.32 and 89,209.54 is: 133,828.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,936.10 : 433,450.32 = 89,209.54 : x
  2. Step 2: Convert to fraction form
    288,936.10/433,450.32 = 89,209.54/x
  3. Step 3: Cross multiply
    288,936.10x = 433,450.32 × 89,209.54
  4. Step 4: Simplify right side
    288,936.10x = 38,667,903,660.05
  5. Step 5: Solve for x
    x = 38,667,903,660.05/288,936.10
  6. Step 6: Final answer
    x = 133,828.57

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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.