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Finding the Fourth Proportional to 306,492.79, 422,953.44 and 177,436.72

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Solution

The fourth proportional to 306,492.79, 422,953.44 and 177,436.72 is: 244,858.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,492.79 : 422,953.44 = 177,436.72 : x
  2. Step 2: Convert to fraction form
    306,492.79/422,953.44 = 177,436.72/x
  3. Step 3: Cross multiply
    306,492.79x = 422,953.44 × 177,436.72
  4. Step 4: Simplify right side
    306,492.79x = 75,047,471,106.32
  5. Step 5: Solve for x
    x = 75,047,471,106.32/306,492.79
  6. Step 6: Final answer
    x = 244,858.85

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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.