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Finding the Fourth Proportional to 223,123, 307,878.75 and 131,246.44

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Solution

The fourth proportional to 223,123, 307,878.75 and 131,246.44 is: 181,101.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,123 : 307,878.75 = 131,246.44 : x
  2. Step 2: Convert to fraction form
    223,123/307,878.75 = 131,246.44/x
  3. Step 3: Cross multiply
    223,123x = 307,878.75 × 131,246.44
  4. Step 4: Simplify right side
    223,123x = 40,407,989,889.15
  5. Step 5: Solve for x
    x = 40,407,989,889.15/223,123
  6. Step 6: Final answer
    x = 181,101.86

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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.