Home / 318,538.27-477,474.22-118,771.75

Finding the Fourth Proportional to 318,538.27, 477,474.22 and 118,771.75

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Solution

The fourth proportional to 318,538.27, 477,474.22 and 118,771.75 is: 178,033.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,538.27 : 477,474.22 = 118,771.75 : x
  2. Step 2: Convert to fraction form
    318,538.27/477,474.22 = 118,771.75/x
  3. Step 3: Cross multiply
    318,538.27x = 477,474.22 × 118,771.75
  4. Step 4: Simplify right side
    318,538.27x = 56,710,448,392.36
  5. Step 5: Solve for x
    x = 56,710,448,392.36/318,538.27
  6. Step 6: Final answer
    x = 178,033.39

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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.