Home / 370,370.72-511,153.07-209,236.14

Finding the Fourth Proportional to 370,370.72, 511,153.07 and 209,236.14

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Solution

The fourth proportional to 370,370.72, 511,153.07 and 209,236.14 is: 288,769.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,370.72 : 511,153.07 = 209,236.14 : x
  2. Step 2: Convert to fraction form
    370,370.72/511,153.07 = 209,236.14/x
  3. Step 3: Cross multiply
    370,370.72x = 511,153.07 × 209,236.14
  4. Step 4: Simplify right side
    370,370.72x = 106,951,694,269.77
  5. Step 5: Solve for x
    x = 106,951,694,269.77/370,370.72
  6. Step 6: Final answer
    x = 288,769.30

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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.