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Finding the Fourth Proportional to 300,340.64, 412,262.32 and 265,587.68

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Solution

The fourth proportional to 300,340.64, 412,262.32 and 265,587.68 is: 364,558.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,340.64 : 412,262.32 = 265,587.68 : x
  2. Step 2: Convert to fraction form
    300,340.64/412,262.32 = 265,587.68/x
  3. Step 3: Cross multiply
    300,340.64x = 412,262.32 × 265,587.68
  4. Step 4: Simplify right side
    300,340.64x = 109,491,793,120.22
  5. Step 5: Solve for x
    x = 109,491,793,120.22/300,340.64
  6. Step 6: Final answer
    x = 364,558.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.