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Finding the Fourth Proportional to 208,527.35, 312,815.31 and 75,470.27

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Solution

The fourth proportional to 208,527.35, 312,815.31 and 75,470.27 is: 113,214.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,527.35 : 312,815.31 = 75,470.27 : x
  2. Step 2: Convert to fraction form
    208,527.35/312,815.31 = 75,470.27/x
  3. Step 3: Cross multiply
    208,527.35x = 312,815.31 × 75,470.27
  4. Step 4: Simplify right side
    208,527.35x = 23,608,254,341.76
  5. Step 5: Solve for x
    x = 23,608,254,341.76/208,527.35
  6. Step 6: Final answer
    x = 113,214.19

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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.