Home / 208,182.76-312,585.18-205,072.36

Finding the Fourth Proportional to 208,182.76, 312,585.18 and 205,072.36

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Solution

The fourth proportional to 208,182.76, 312,585.18 and 205,072.36 is: 307,914.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,182.76 : 312,585.18 = 205,072.36 : x
  2. Step 2: Convert to fraction form
    208,182.76/312,585.18 = 205,072.36/x
  3. Step 3: Cross multiply
    208,182.76x = 312,585.18 × 205,072.36
  4. Step 4: Simplify right side
    208,182.76x = 64,102,580,563.62
  5. Step 5: Solve for x
    x = 64,102,580,563.62/208,182.76
  6. Step 6: Final answer
    x = 307,914.93

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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.