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Finding the Fourth Proportional to 228,636.42, 315,488.32 and 131,843.84

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Solution

The fourth proportional to 228,636.42, 315,488.32 and 131,843.84 is: 181,927.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,636.42 : 315,488.32 = 131,843.84 : x
  2. Step 2: Convert to fraction form
    228,636.42/315,488.32 = 131,843.84/x
  3. Step 3: Cross multiply
    228,636.42x = 315,488.32 × 131,843.84
  4. Step 4: Simplify right side
    228,636.42x = 41,595,191,583.95
  5. Step 5: Solve for x
    x = 41,595,191,583.95/228,636.42
  6. Step 6: Final answer
    x = 181,927.23

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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.