Home / 261,918.81-361,450.50-148,742.37

Finding the Fourth Proportional to 261,918.81, 361,450.50 and 148,742.37

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Solution

The fourth proportional to 261,918.81, 361,450.50 and 148,742.37 is: 205,265.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,918.81 : 361,450.50 = 148,742.37 : x
  2. Step 2: Convert to fraction form
    261,918.81/361,450.50 = 148,742.37/x
  3. Step 3: Cross multiply
    261,918.81x = 361,450.50 × 148,742.37
  4. Step 4: Simplify right side
    261,918.81x = 53,763,004,007.69
  5. Step 5: Solve for x
    x = 53,763,004,007.69/261,918.81
  6. Step 6: Final answer
    x = 205,265.91

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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.