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Finding the Fourth Proportional to 216,567.88, 298,870.26 and 121,078.60

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Solution

The fourth proportional to 216,567.88, 298,870.26 and 121,078.60 is: 167,092.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,567.88 : 298,870.26 = 121,078.60 : x
  2. Step 2: Convert to fraction form
    216,567.88/298,870.26 = 121,078.60/x
  3. Step 3: Cross multiply
    216,567.88x = 298,870.26 × 121,078.60
  4. Step 4: Simplify right side
    216,567.88x = 36,186,792,662.44
  5. Step 5: Solve for x
    x = 36,186,792,662.44/216,567.88
  6. Step 6: Final answer
    x = 167,092.15

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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.