Home / 370,481.21-511,266.51-200,715.34

Finding the Fourth Proportional to 370,481.21, 511,266.51 and 200,715.34

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Solution

The fourth proportional to 370,481.21, 511,266.51 and 200,715.34 is: 276,988.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,481.21 : 511,266.51 = 200,715.34 : x
  2. Step 2: Convert to fraction form
    370,481.21/511,266.51 = 200,715.34/x
  3. Step 3: Cross multiply
    370,481.21x = 511,266.51 × 200,715.34
  4. Step 4: Simplify right side
    370,481.21x = 102,619,031,385.26
  5. Step 5: Solve for x
    x = 102,619,031,385.26/370,481.21
  6. Step 6: Final answer
    x = 276,988.49

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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.