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Finding the Fourth Proportional to 312,268.26, 468,415.34 and 90,652.26

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Solution

The fourth proportional to 312,268.26, 468,415.34 and 90,652.26 is: 135,982.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,268.26 : 468,415.34 = 90,652.26 : x
  2. Step 2: Convert to fraction form
    312,268.26/468,415.34 = 90,652.26/x
  3. Step 3: Cross multiply
    312,268.26x = 468,415.34 × 90,652.26
  4. Step 4: Simplify right side
    312,268.26x = 42,462,909,189.67
  5. Step 5: Solve for x
    x = 42,462,909,189.67/312,268.26
  6. Step 6: Final answer
    x = 135,982.15

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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.