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Finding the Fourth Proportional to 517,077.36, 775,629 and 143,103.60

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Solution

The fourth proportional to 517,077.36, 775,629 and 143,103.60 is: 214,658.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,077.36 : 775,629 = 143,103.60 : x
  2. Step 2: Convert to fraction form
    517,077.36/775,629 = 143,103.60/x
  3. Step 3: Cross multiply
    517,077.36x = 775,629 × 143,103.60
  4. Step 4: Simplify right side
    517,077.36x = 110,995,302,164.40
  5. Step 5: Solve for x
    x = 110,995,302,164.40/517,077.36
  6. Step 6: Final answer
    x = 214,658.99

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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.