Home / 215,905.18-324,138.41-166,020.31

Finding the Fourth Proportional to 215,905.18, 324,138.41 and 166,020.31

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Solution

The fourth proportional to 215,905.18, 324,138.41 and 166,020.31 is: 249,246.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,905.18 : 324,138.41 = 166,020.31 : x
  2. Step 2: Convert to fraction form
    215,905.18/324,138.41 = 166,020.31/x
  3. Step 3: Cross multiply
    215,905.18x = 324,138.41 × 166,020.31
  4. Step 4: Simplify right side
    215,905.18x = 53,813,559,122.41
  5. Step 5: Solve for x
    x = 53,813,559,122.41/215,905.18
  6. Step 6: Final answer
    x = 249,246.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.