Home / 208,315.77-312,474.06-75,289.95

Finding the Fourth Proportional to 208,315.77, 312,474.06 and 75,289.95

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Solution

The fourth proportional to 208,315.77, 312,474.06 and 75,289.95 is: 112,935.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,315.77 : 312,474.06 = 75,289.95 : x
  2. Step 2: Convert to fraction form
    208,315.77/312,474.06 = 75,289.95/x
  3. Step 3: Cross multiply
    208,315.77x = 312,474.06 × 75,289.95
  4. Step 4: Simplify right side
    208,315.77x = 23,526,156,353.70
  5. Step 5: Solve for x
    x = 23,526,156,353.70/208,315.77
  6. Step 6: Final answer
    x = 112,935.07

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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.