Home / 395,119.65-545,265.07-213,831.62

Finding the Fourth Proportional to 395,119.65, 545,265.07 and 213,831.62

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Solution

The fourth proportional to 395,119.65, 545,265.07 and 213,831.62 is: 295,087.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,119.65 : 545,265.07 = 213,831.62 : x
  2. Step 2: Convert to fraction form
    395,119.65/545,265.07 = 213,831.62/x
  3. Step 3: Cross multiply
    395,119.65x = 545,265.07 × 213,831.62
  4. Step 4: Simplify right side
    395,119.65x = 116,594,913,247.51
  5. Step 5: Solve for x
    x = 116,594,913,247.51/395,119.65
  6. Step 6: Final answer
    x = 295,087.61

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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.