Home / 465,090.12-641,831.10-261,185.18

Finding the Fourth Proportional to 465,090.12, 641,831.10 and 261,185.18

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Solution

The fourth proportional to 465,090.12, 641,831.10 and 261,185.18 is: 360,439.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,090.12 : 641,831.10 = 261,185.18 : x
  2. Step 2: Convert to fraction form
    465,090.12/641,831.10 = 261,185.18/x
  3. Step 3: Cross multiply
    465,090.12x = 641,831.10 × 261,185.18
  4. Step 4: Simplify right side
    465,090.12x = 167,636,771,560.25
  5. Step 5: Solve for x
    x = 167,636,771,560.25/465,090.12
  6. Step 6: Final answer
    x = 360,439.33

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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.