Home / 309,819.22-427,549.32-173,852.85

Finding the Fourth Proportional to 309,819.22, 427,549.32 and 173,852.85

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Solution

The fourth proportional to 309,819.22, 427,549.32 and 173,852.85 is: 239,916.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,819.22 : 427,549.32 = 173,852.85 : x
  2. Step 2: Convert to fraction form
    309,819.22/427,549.32 = 173,852.85/x
  3. Step 3: Cross multiply
    309,819.22x = 427,549.32 × 173,852.85
  4. Step 4: Simplify right side
    309,819.22x = 74,330,667,797.56
  5. Step 5: Solve for x
    x = 74,330,667,797.56/309,819.22
  6. Step 6: Final answer
    x = 239,916.26

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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.