Home / 262,020.90-361,222.71-221,572.38

Finding the Fourth Proportional to 262,020.90, 361,222.71 and 221,572.38

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Solution

The fourth proportional to 262,020.90, 361,222.71 and 221,572.38 is: 305,460.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,020.90 : 361,222.71 = 221,572.38 : x
  2. Step 2: Convert to fraction form
    262,020.90/361,222.71 = 221,572.38/x
  3. Step 3: Cross multiply
    262,020.90x = 361,222.71 × 221,572.38
  4. Step 4: Simplify right side
    262,020.90x = 80,036,975,564.75
  5. Step 5: Solve for x
    x = 80,036,975,564.75/262,020.90
  6. Step 6: Final answer
    x = 305,460.27

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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.