Home / 288,868.35-398,626.34-168,009.87

Finding the Fourth Proportional to 288,868.35, 398,626.34 and 168,009.87

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Solution

The fourth proportional to 288,868.35, 398,626.34 and 168,009.87 is: 231,846.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,868.35 : 398,626.34 = 168,009.87 : x
  2. Step 2: Convert to fraction form
    288,868.35/398,626.34 = 168,009.87/x
  3. Step 3: Cross multiply
    288,868.35x = 398,626.34 × 168,009.87
  4. Step 4: Simplify right side
    288,868.35x = 66,973,158,721.93
  5. Step 5: Solve for x
    x = 66,973,158,721.93/288,868.35
  6. Step 6: Final answer
    x = 231,846.65

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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.