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Finding the Fourth Proportional to 370,400.66, 511,153.62 and 200,634.92

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Solution

The fourth proportional to 370,400.66, 511,153.62 and 200,634.92 is: 276,876.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,400.66 : 511,153.62 = 200,634.92 : x
  2. Step 2: Convert to fraction form
    370,400.66/511,153.62 = 200,634.92/x
  3. Step 3: Cross multiply
    370,400.66x = 511,153.62 × 200,634.92
  4. Step 4: Simplify right side
    370,400.66x = 102,555,265,656.41
  5. Step 5: Solve for x
    x = 102,555,265,656.41/370,400.66
  6. Step 6: Final answer
    x = 276,876.57

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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.