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Finding the Fourth Proportional to 288,774.65, 398,558.27 and 167,986.04

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Solution

The fourth proportional to 288,774.65, 398,558.27 and 167,986.04 is: 231,849.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,774.65 : 398,558.27 = 167,986.04 : x
  2. Step 2: Convert to fraction form
    288,774.65/398,558.27 = 167,986.04/x
  3. Step 3: Cross multiply
    288,774.65x = 398,558.27 × 167,986.04
  4. Step 4: Simplify right side
    288,774.65x = 66,952,223,913.72
  5. Step 5: Solve for x
    x = 66,952,223,913.72/288,774.65
  6. Step 6: Final answer
    x = 231,849.38

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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.