Home / 208,191.76-312,598.68-205,081.36

Finding the Fourth Proportional to 208,191.76, 312,598.68 and 205,081.36

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Solution

The fourth proportional to 208,191.76, 312,598.68 and 205,081.36 is: 307,928.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,191.76 : 312,598.68 = 205,081.36 : x
  2. Step 2: Convert to fraction form
    208,191.76/312,598.68 = 205,081.36/x
  3. Step 3: Cross multiply
    208,191.76x = 312,598.68 × 205,081.36
  4. Step 4: Simplify right side
    208,191.76x = 64,108,162,428.60
  5. Step 5: Solve for x
    x = 64,108,162,428.60/208,191.76
  6. Step 6: Final answer
    x = 307,928.43

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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.