Home / 305,431.06-458,212.40-92,181.12

Finding the Fourth Proportional to 305,431.06, 458,212.40 and 92,181.12

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Solution

The fourth proportional to 305,431.06, 458,212.40 and 92,181.12 is: 138,291.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,431.06 : 458,212.40 = 92,181.12 : x
  2. Step 2: Convert to fraction form
    305,431.06/458,212.40 = 92,181.12/x
  3. Step 3: Cross multiply
    305,431.06x = 458,212.40 × 92,181.12
  4. Step 4: Simplify right side
    305,431.06x = 42,238,532,229.89
  5. Step 5: Solve for x
    x = 42,238,532,229.89/305,431.06
  6. Step 6: Final answer
    x = 138,291.54

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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.