Home / 370,318.70-511,081.36-209,184.12

Finding the Fourth Proportional to 370,318.70, 511,081.36 and 209,184.12

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Solution

The fourth proportional to 370,318.70, 511,081.36 and 209,184.12 is: 288,697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,318.70 : 511,081.36 = 209,184.12 : x
  2. Step 2: Convert to fraction form
    370,318.70/511,081.36 = 209,184.12/x
  3. Step 3: Cross multiply
    370,318.70x = 511,081.36 × 209,184.12
  4. Step 4: Simplify right side
    370,318.70x = 106,910,104,540.00
  5. Step 5: Solve for x
    x = 106,910,104,540.00/370,318.70
  6. Step 6: Final answer
    x = 288,697.56

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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.