Home / 209,575.23-288,662.88-161,084.43

Finding the Fourth Proportional to 209,575.23, 288,662.88 and 161,084.43

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Solution

The fourth proportional to 209,575.23, 288,662.88 and 161,084.43 is: 221,873.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,575.23 : 288,662.88 = 161,084.43 : x
  2. Step 2: Convert to fraction form
    209,575.23/288,662.88 = 161,084.43/x
  3. Step 3: Cross multiply
    209,575.23x = 288,662.88 × 161,084.43
  4. Step 4: Simplify right side
    209,575.23x = 46,499,095,486.96
  5. Step 5: Solve for x
    x = 46,499,095,486.96/209,575.23
  6. Step 6: Final answer
    x = 221,873.05

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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.