Home / 209,147.27-288,622.46-118,520.48

Finding the Fourth Proportional to 209,147.27, 288,622.46 and 118,520.48

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Solution

The fourth proportional to 209,147.27, 288,622.46 and 118,520.48 is: 163,557.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,147.27 : 288,622.46 = 118,520.48 : x
  2. Step 2: Convert to fraction form
    209,147.27/288,622.46 = 118,520.48/x
  3. Step 3: Cross multiply
    209,147.27x = 288,622.46 × 118,520.48
  4. Step 4: Simplify right side
    209,147.27x = 34,207,673,515.84
  5. Step 5: Solve for x
    x = 34,207,673,515.84/209,147.27
  6. Step 6: Final answer
    x = 163,557.83

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1.5x scale

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.