Home / 208,408.28-287,614.60-117,768.06

Finding the Fourth Proportional to 208,408.28, 287,614.60 and 117,768.06

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Solution

The fourth proportional to 208,408.28, 287,614.60 and 117,768.06 is: 162,526.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,408.28 : 287,614.60 = 117,768.06 : x
  2. Step 2: Convert to fraction form
    208,408.28/287,614.60 = 117,768.06/x
  3. Step 3: Cross multiply
    208,408.28x = 287,614.60 × 117,768.06
  4. Step 4: Simplify right side
    208,408.28x = 33,871,813,469.68
  5. Step 5: Solve for x
    x = 33,871,813,469.68/208,408.28
  6. Step 6: Final answer
    x = 162,526.24

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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.