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Finding the Fourth Proportional to 312,258.72, 430,900.76 and 183,179.24

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Solution

The fourth proportional to 312,258.72, 430,900.76 and 183,179.24 is: 252,777.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,258.72 : 430,900.76 = 183,179.24 : x
  2. Step 2: Convert to fraction form
    312,258.72/430,900.76 = 183,179.24/x
  3. Step 3: Cross multiply
    312,258.72x = 430,900.76 × 183,179.24
  4. Step 4: Simplify right side
    312,258.72x = 78,932,073,732.22
  5. Step 5: Solve for x
    x = 78,932,073,732.22/312,258.72
  6. Step 6: Final answer
    x = 252,777.80

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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.