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Finding the Fourth Proportional to 370,457.20, 511,230.84 and 200,691.28

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Solution

The fourth proportional to 370,457.20, 511,230.84 and 200,691.28 is: 276,953.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,457.20 : 511,230.84 = 200,691.28 : x
  2. Step 2: Convert to fraction form
    370,457.20/511,230.84 = 200,691.28/x
  3. Step 3: Cross multiply
    370,457.20x = 511,230.84 × 200,691.28
  4. Step 4: Simplify right side
    370,457.20x = 102,599,571,655.08
  5. Step 5: Solve for x
    x = 102,599,571,655.08/370,457.20
  6. Step 6: Final answer
    x = 276,953.91

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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.