Home / 288,582.12-398,231.64-167,722.56

Finding the Fourth Proportional to 288,582.12, 398,231.64 and 167,722.56

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Solution

The fourth proportional to 288,582.12, 398,231.64 and 167,722.56 is: 231,450.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,582.12 : 398,231.64 = 167,722.56 : x
  2. Step 2: Convert to fraction form
    288,582.12/398,231.64 = 167,722.56/x
  3. Step 3: Cross multiply
    288,582.12x = 398,231.64 × 167,722.56
  4. Step 4: Simplify right side
    288,582.12x = 66,792,430,133.80
  5. Step 5: Solve for x
    x = 66,792,430,133.80/288,582.12
  6. Step 6: Final answer
    x = 231,450.34

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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.