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Finding the Fourth Proportional to 500,745.36, 751,240.92 and 145,762.56

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Solution

The fourth proportional to 500,745.36, 751,240.92 and 145,762.56 is: 218,679.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,745.36 : 751,240.92 = 145,762.56 : x
  2. Step 2: Convert to fraction form
    500,745.36/751,240.92 = 145,762.56/x
  3. Step 3: Cross multiply
    500,745.36x = 751,240.92 × 145,762.56
  4. Step 4: Simplify right side
    500,745.36x = 109,502,799,675.96
  5. Step 5: Solve for x
    x = 109,502,799,675.96/500,745.36
  6. Step 6: Final answer
    x = 218,679.61

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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.