Home / 209,562.41-288,645.20-161,071.61

Finding the Fourth Proportional to 209,562.41, 288,645.20 and 161,071.61

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Solution

The fourth proportional to 209,562.41, 288,645.20 and 161,071.61 is: 221,855.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,562.41 : 288,645.20 = 161,071.61 : x
  2. Step 2: Convert to fraction form
    209,562.41/288,645.20 = 161,071.61/x
  3. Step 3: Cross multiply
    209,562.41x = 288,645.20 × 161,071.61
  4. Step 4: Simplify right side
    209,562.41x = 46,492,545,639.55
  5. Step 5: Solve for x
    x = 46,492,545,639.55/209,562.41
  6. Step 6: Final answer
    x = 221,855.37

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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.