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Finding the Fourth Proportional to 307,139.92, 460,712.76 and 300,608.08

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Solution

The fourth proportional to 307,139.92, 460,712.76 and 300,608.08 is: 450,914.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,139.92 : 460,712.76 = 300,608.08 : x
  2. Step 2: Convert to fraction form
    307,139.92/460,712.76 = 300,608.08/x
  3. Step 3: Cross multiply
    307,139.92x = 460,712.76 × 300,608.08
  4. Step 4: Simplify right side
    307,139.92x = 138,493,978,215.10
  5. Step 5: Solve for x
    x = 138,493,978,215.10/307,139.92
  6. Step 6: Final answer
    x = 450,914.94

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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.