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Finding the Fourth Proportional to 483,133.32, 666,701.64 and 268,287

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Solution

The fourth proportional to 483,133.32, 666,701.64 and 268,287 is: 370,223.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,133.32 : 666,701.64 = 268,287 : x
  2. Step 2: Convert to fraction form
    483,133.32/666,701.64 = 268,287/x
  3. Step 3: Cross multiply
    483,133.32x = 666,701.64 × 268,287
  4. Step 4: Simplify right side
    483,133.32x = 178,867,382,890.68
  5. Step 5: Solve for x
    x = 178,867,382,890.68/483,133.32
  6. Step 6: Final answer
    x = 370,223.65

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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.