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Finding the Fourth Proportional to 222,377.65, 306,880.75 and 120,403.21

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Solution

The fourth proportional to 222,377.65, 306,880.75 and 120,403.21 is: 166,156.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,377.65 : 306,880.75 = 120,403.21 : x
  2. Step 2: Convert to fraction form
    222,377.65/306,880.75 = 120,403.21/x
  3. Step 3: Cross multiply
    222,377.65x = 306,880.75 × 120,403.21
  4. Step 4: Simplify right side
    222,377.65x = 36,949,427,345.91
  5. Step 5: Solve for x
    x = 36,949,427,345.91/222,377.65
  6. Step 6: Final answer
    x = 166,156.21

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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.