Home / 380,629.17-525,229.97-210,831.57

Finding the Fourth Proportional to 380,629.17, 525,229.97 and 210,831.57

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Solution

The fourth proportional to 380,629.17, 525,229.97 and 210,831.57 is: 290,926.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,629.17 : 525,229.97 = 210,831.57 : x
  2. Step 2: Convert to fraction form
    380,629.17/525,229.97 = 210,831.57/x
  3. Step 3: Cross multiply
    380,629.17x = 525,229.97 × 210,831.57
  4. Step 4: Simplify right side
    380,629.17x = 110,735,059,186.15
  5. Step 5: Solve for x
    x = 110,735,059,186.15/380,629.17
  6. Step 6: Final answer
    x = 290,926.36

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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.