Home / 200,440.32-276,630.93-115,560.42

Finding the Fourth Proportional to 200,440.32, 276,630.93 and 115,560.42

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Solution

The fourth proportional to 200,440.32, 276,630.93 and 115,560.42 is: 159,486.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,440.32 : 276,630.93 = 115,560.42 : x
  2. Step 2: Convert to fraction form
    200,440.32/276,630.93 = 115,560.42/x
  3. Step 3: Cross multiply
    200,440.32x = 276,630.93 × 115,560.42
  4. Step 4: Simplify right side
    200,440.32x = 31,967,586,455.79
  5. Step 5: Solve for x
    x = 31,967,586,455.79/200,440.32
  6. Step 6: Final answer
    x = 159,486.81

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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.