Home / 289,916.03-434,767.42-100,327.73

Finding the Fourth Proportional to 289,916.03, 434,767.42 and 100,327.73

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Solution

The fourth proportional to 289,916.03, 434,767.42 and 100,327.73 is: 150,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,916.03 : 434,767.42 = 100,327.73 : x
  2. Step 2: Convert to fraction form
    289,916.03/434,767.42 = 100,327.73/x
  3. Step 3: Cross multiply
    289,916.03x = 434,767.42 × 100,327.73
  4. Step 4: Simplify right side
    289,916.03x = 43,619,228,326.56
  5. Step 5: Solve for x
    x = 43,619,228,326.56/289,916.03
  6. Step 6: Final answer
    x = 150,454.70

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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.