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Finding the Fourth Proportional to 312,269.37, 468,405.26 and 75,612.27

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Solution

The fourth proportional to 312,269.37, 468,405.26 and 75,612.27 is: 113,418.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,269.37 : 468,405.26 = 75,612.27 : x
  2. Step 2: Convert to fraction form
    312,269.37/468,405.26 = 75,612.27/x
  3. Step 3: Cross multiply
    312,269.37x = 468,405.26 × 75,612.27
  4. Step 4: Simplify right side
    312,269.37x = 35,417,184,988.54
  5. Step 5: Solve for x
    x = 35,417,184,988.54/312,269.37
  6. Step 6: Final answer
    x = 113,418.70

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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.