Home / 370,329.94-511,086.78-209,214.55

Finding the Fourth Proportional to 370,329.94, 511,086.78 and 209,214.55

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Solution

The fourth proportional to 370,329.94, 511,086.78 and 209,214.55 is: 288,733.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,329.94 : 511,086.78 = 209,214.55 : x
  2. Step 2: Convert to fraction form
    370,329.94/511,086.78 = 209,214.55/x
  3. Step 3: Cross multiply
    370,329.94x = 511,086.78 × 209,214.55
  4. Step 4: Simplify right side
    370,329.94x = 106,926,790,688.65
  5. Step 5: Solve for x
    x = 106,926,790,688.65/370,329.94
  6. Step 6: Final answer
    x = 288,733.85

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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.