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Finding the Fourth Proportional to 307,740.60, 460,736.10 and 276,247.80

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Solution

The fourth proportional to 307,740.60, 460,736.10 and 276,247.80 is: 413,586.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,740.60 : 460,736.10 = 276,247.80 : x
  2. Step 2: Convert to fraction form
    307,740.60/460,736.10 = 276,247.80/x
  3. Step 3: Cross multiply
    307,740.60x = 460,736.10 × 276,247.80
  4. Step 4: Simplify right side
    307,740.60x = 127,277,334,005.58
  5. Step 5: Solve for x
    x = 127,277,334,005.58/307,740.60
  6. Step 6: Final answer
    x = 413,586.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.