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Finding the Fourth Proportional to 208,585.92, 312,903.15 and 75,528.84

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Solution

The fourth proportional to 208,585.92, 312,903.15 and 75,528.84 is: 113,302.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,585.92 : 312,903.15 = 75,528.84 : x
  2. Step 2: Convert to fraction form
    208,585.92/312,903.15 = 75,528.84/x
  3. Step 3: Cross multiply
    208,585.92x = 312,903.15 × 75,528.84
  4. Step 4: Simplify right side
    208,585.92x = 23,633,211,951.85
  5. Step 5: Solve for x
    x = 23,633,211,951.85/208,585.92
  6. Step 6: Final answer
    x = 113,302.05

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1.5x scale

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.