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Finding the Fourth Proportional to 318,470.26, 477,693 and 118,790.26

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Solution

The fourth proportional to 318,470.26, 477,693 and 118,790.26 is: 178,180.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,470.26 : 477,693 = 118,790.26 : x
  2. Step 2: Convert to fraction form
    318,470.26/477,693 = 118,790.26/x
  3. Step 3: Cross multiply
    318,470.26x = 477,693 × 118,790.26
  4. Step 4: Simplify right side
    318,470.26x = 56,745,275,670.18
  5. Step 5: Solve for x
    x = 56,745,275,670.18/318,470.26
  6. Step 6: Final answer
    x = 178,180.77

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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.