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Finding the Fourth Proportional to 286,687.23, 430,028.42 and 73,454.73

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Solution

The fourth proportional to 286,687.23, 430,028.42 and 73,454.73 is: 110,181.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,687.23 : 430,028.42 = 73,454.73 : x
  2. Step 2: Convert to fraction form
    286,687.23/430,028.42 = 73,454.73/x
  3. Step 3: Cross multiply
    286,687.23x = 430,028.42 × 73,454.73
  4. Step 4: Simplify right side
    286,687.23x = 31,587,621,116.15
  5. Step 5: Solve for x
    x = 31,587,621,116.15/286,687.23
  6. Step 6: Final answer
    x = 110,181.47

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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.