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Finding the Fourth Proportional to 315,792.90, 435,745.89 and 179,832.42

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Solution

The fourth proportional to 315,792.90, 435,745.89 and 179,832.42 is: 248,141.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,792.90 : 435,745.89 = 179,832.42 : x
  2. Step 2: Convert to fraction form
    315,792.90/435,745.89 = 179,832.42/x
  3. Step 3: Cross multiply
    315,792.90x = 435,745.89 × 179,832.42
  4. Step 4: Simplify right side
    315,792.90x = 78,361,237,903.75
  5. Step 5: Solve for x
    x = 78,361,237,903.75/315,792.90
  6. Step 6: Final answer
    x = 248,141.23

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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.