Home / 388,588.95-582,936.44-135,810.77

Finding the Fourth Proportional to 388,588.95, 582,936.44 and 135,810.77

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Solution

The fourth proportional to 388,588.95, 582,936.44 and 135,810.77 is: 203,734.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,588.95 : 582,936.44 = 135,810.77 : x
  2. Step 2: Convert to fraction form
    388,588.95/582,936.44 = 135,810.77/x
  3. Step 3: Cross multiply
    388,588.95x = 582,936.44 × 135,810.77
  4. Step 4: Simplify right side
    388,588.95x = 79,169,043,183.72
  5. Step 5: Solve for x
    x = 79,169,043,183.72/388,588.95
  6. Step 6: Final answer
    x = 203,734.67

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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.