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Finding the Fourth Proportional to 312,444.89, 468,667.35 and 87,796.25

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Solution

The fourth proportional to 312,444.89, 468,667.35 and 87,796.25 is: 131,694.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,444.89 : 468,667.35 = 87,796.25 : x
  2. Step 2: Convert to fraction form
    312,444.89/468,667.35 = 87,796.25/x
  3. Step 3: Cross multiply
    312,444.89x = 468,667.35 × 87,796.25
  4. Step 4: Simplify right side
    312,444.89x = 41,147,233,484.10
  5. Step 5: Solve for x
    x = 41,147,233,484.10/312,444.89
  6. Step 6: Final answer
    x = 131,694.37

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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.