Home / 208,836.40-312,563.40-161,834.80

Finding the Fourth Proportional to 208,836.40, 312,563.40 and 161,834.80

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Solution

The fourth proportional to 208,836.40, 312,563.40 and 161,834.80 is: 242,216.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,836.40 : 312,563.40 = 161,834.80 : x
  2. Step 2: Convert to fraction form
    208,836.40/312,563.40 = 161,834.80/x
  3. Step 3: Cross multiply
    208,836.40x = 312,563.40 × 161,834.80
  4. Step 4: Simplify right side
    208,836.40x = 50,583,635,326.32
  5. Step 5: Solve for x
    x = 50,583,635,326.32/208,836.40
  6. Step 6: Final answer
    x = 242,216.56

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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.