Home / 505,096.90-757,638.87-145,276.54

Finding the Fourth Proportional to 505,096.90, 757,638.87 and 145,276.54

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Solution

The fourth proportional to 505,096.90, 757,638.87 and 145,276.54 is: 217,912.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,096.90 : 757,638.87 = 145,276.54 : x
  2. Step 2: Convert to fraction form
    505,096.90/757,638.87 = 145,276.54/x
  3. Step 3: Cross multiply
    505,096.90x = 757,638.87 × 145,276.54
  4. Step 4: Simplify right side
    505,096.90x = 110,067,153,603.11
  5. Step 5: Solve for x
    x = 110,067,153,603.11/505,096.90
  6. Step 6: Final answer
    x = 217,912.95

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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.