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Finding the Fourth Proportional to 228,632.91, 315,483.50 and 131,840.34

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Solution

The fourth proportional to 228,632.91, 315,483.50 and 131,840.34 is: 181,922.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,632.91 : 315,483.50 = 131,840.34 : x
  2. Step 2: Convert to fraction form
    228,632.91/315,483.50 = 131,840.34/x
  3. Step 3: Cross multiply
    228,632.91x = 315,483.50 × 131,840.34
  4. Step 4: Simplify right side
    228,632.91x = 41,593,451,245.19
  5. Step 5: Solve for x
    x = 41,593,451,245.19/228,632.91
  6. Step 6: Final answer
    x = 181,922.42

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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.