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Finding the Fourth Proportional to 222,704.32, 306,919.76 and 158,176.32

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Solution

The fourth proportional to 222,704.32, 306,919.76 and 158,176.32 is: 217,990.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,704.32 : 306,919.76 = 158,176.32 : x
  2. Step 2: Convert to fraction form
    222,704.32/306,919.76 = 158,176.32/x
  3. Step 3: Cross multiply
    222,704.32x = 306,919.76 × 158,176.32
  4. Step 4: Simplify right side
    222,704.32x = 48,547,438,172.08
  5. Step 5: Solve for x
    x = 48,547,438,172.08/222,704.32
  6. Step 6: Final answer
    x = 217,990.55

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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.