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Finding the Fourth Proportional to 307,244.63, 460,944.71 and 85,628.63

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Solution

The fourth proportional to 307,244.63, 460,944.71 and 85,628.63 is: 128,464.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,244.63 : 460,944.71 = 85,628.63 : x
  2. Step 2: Convert to fraction form
    307,244.63/460,944.71 = 85,628.63/x
  3. Step 3: Cross multiply
    307,244.63x = 460,944.71 × 85,628.63
  4. Step 4: Simplify right side
    307,244.63x = 39,470,061,290.18
  5. Step 5: Solve for x
    x = 39,470,061,290.18/307,244.63
  6. Step 6: Final answer
    x = 128,464.61

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1.5x scale

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.