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Finding the Fourth Proportional to 370,440.21, 511,207.49 and 200,674.34

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Solution

The fourth proportional to 370,440.21, 511,207.49 and 200,674.34 is: 276,930.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,440.21 : 511,207.49 = 200,674.34 : x
  2. Step 2: Convert to fraction form
    370,440.21/511,207.49 = 200,674.34/x
  3. Step 3: Cross multiply
    370,440.21x = 511,207.49 × 200,674.34
  4. Step 4: Simplify right side
    370,440.21x = 102,586,223,801.51
  5. Step 5: Solve for x
    x = 102,586,223,801.51/370,440.21
  6. Step 6: Final answer
    x = 276,930.58

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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.