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Finding the Fourth Proportional to 370,422.78, 511,182.63 and 200,658.30

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Solution

The fourth proportional to 370,422.78, 511,182.63 and 200,658.30 is: 276,908.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,422.78 : 511,182.63 = 200,658.30 : x
  2. Step 2: Convert to fraction form
    370,422.78/511,182.63 = 200,658.30/x
  3. Step 3: Cross multiply
    370,422.78x = 511,182.63 × 200,658.30
  4. Step 4: Simplify right side
    370,422.78x = 102,573,037,525.33
  5. Step 5: Solve for x
    x = 102,573,037,525.33/370,422.78
  6. Step 6: Final answer
    x = 276,908.02

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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.