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Finding the Fourth Proportional to 342,289.57, 472,357.48 and 189,325.02

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Solution

The fourth proportional to 342,289.57, 472,357.48 and 189,325.02 is: 261,267.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,289.57 : 472,357.48 = 189,325.02 : x
  2. Step 2: Convert to fraction form
    342,289.57/472,357.48 = 189,325.02/x
  3. Step 3: Cross multiply
    342,289.57x = 472,357.48 × 189,325.02
  4. Step 4: Simplify right side
    342,289.57x = 89,429,089,348.15
  5. Step 5: Solve for x
    x = 89,429,089,348.15/342,289.57
  6. Step 6: Final answer
    x = 261,267.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.