Home / 208,528.58-312,814.74-68,298.14

Finding the Fourth Proportional to 208,528.58, 312,814.74 and 68,298.14

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Solution

The fourth proportional to 208,528.58, 312,814.74 and 68,298.14 is: 102,454.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,528.58 : 312,814.74 = 68,298.14 : x
  2. Step 2: Convert to fraction form
    208,528.58/312,814.74 = 68,298.14/x
  3. Step 3: Cross multiply
    208,528.58x = 312,814.74 × 68,298.14
  4. Step 4: Simplify right side
    208,528.58x = 21,364,664,906.58
  5. Step 5: Solve for x
    x = 21,364,664,906.58/208,528.58
  6. Step 6: Final answer
    x = 102,454.37

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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.