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Finding the Fourth Proportional to 545,361.34, 818,083 and 145,993.26

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Solution

The fourth proportional to 545,361.34, 818,083 and 145,993.26 is: 219,000.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,361.34 : 818,083 = 145,993.26 : x
  2. Step 2: Convert to fraction form
    545,361.34/818,083 = 145,993.26/x
  3. Step 3: Cross multiply
    545,361.34x = 818,083 × 145,993.26
  4. Step 4: Simplify right side
    545,361.34x = 119,434,604,120.58
  5. Step 5: Solve for x
    x = 119,434,604,120.58/545,361.34
  6. Step 6: Final answer
    x = 219,000.86

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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.