Home / 370,683.21-511,537.27-209,532.60

Finding the Fourth Proportional to 370,683.21, 511,537.27 and 209,532.60

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Solution

The fourth proportional to 370,683.21, 511,537.27 and 209,532.60 is: 289,151.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,683.21 : 511,537.27 = 209,532.60 : x
  2. Step 2: Convert to fraction form
    370,683.21/511,537.27 = 209,532.60/x
  3. Step 3: Cross multiply
    370,683.21x = 511,537.27 × 209,532.60
  4. Step 4: Simplify right side
    370,683.21x = 107,183,734,180.00
  5. Step 5: Solve for x
    x = 107,183,734,180.00/370,683.21
  6. Step 6: Final answer
    x = 289,151.85

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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.