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Finding the Fourth Proportional to 312,363.08, 468,544.63 and 75,705.76

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Solution

The fourth proportional to 312,363.08, 468,544.63 and 75,705.76 is: 113,558.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,363.08 : 468,544.63 = 75,705.76 : x
  2. Step 2: Convert to fraction form
    312,363.08/468,544.63 = 75,705.76/x
  3. Step 3: Cross multiply
    312,363.08x = 468,544.63 × 75,705.76
  4. Step 4: Simplify right side
    312,363.08x = 35,471,527,308.07
  5. Step 5: Solve for x
    x = 35,471,527,308.07/312,363.08
  6. Step 6: Final answer
    x = 113,558.64

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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.