Home / 208,140.30-312,211.98-50,368.75

Finding the Fourth Proportional to 208,140.30, 312,211.98 and 50,368.75

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Solution

The fourth proportional to 208,140.30, 312,211.98 and 50,368.75 is: 75,553.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,140.30 : 312,211.98 = 50,368.75 : x
  2. Step 2: Convert to fraction form
    208,140.30/312,211.98 = 50,368.75/x
  3. Step 3: Cross multiply
    208,140.30x = 312,211.98 × 50,368.75
  4. Step 4: Simplify right side
    208,140.30x = 15,725,726,387.10
  5. Step 5: Solve for x
    x = 15,725,726,387.10/208,140.30
  6. Step 6: Final answer
    x = 75,553.49

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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.