Home / 388,288.98-582,433.02-122,072.76

Finding the Fourth Proportional to 388,288.98, 582,433.02 and 122,072.76

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Solution

The fourth proportional to 388,288.98, 582,433.02 and 122,072.76 is: 183,109.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,288.98 : 582,433.02 = 122,072.76 : x
  2. Step 2: Convert to fraction form
    388,288.98/582,433.02 = 122,072.76/x
  3. Step 3: Cross multiply
    388,288.98x = 582,433.02 × 122,072.76
  4. Step 4: Simplify right side
    388,288.98x = 71,099,206,266.54
  5. Step 5: Solve for x
    x = 71,099,206,266.54/388,288.98
  6. Step 6: Final answer
    x = 183,109.00

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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.