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Finding the Fourth Proportional to 289,571.52, 399,608.43 and 162,248.03

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Solution

The fourth proportional to 289,571.52, 399,608.43 and 162,248.03 is: 223,902.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,571.52 : 399,608.43 = 162,248.03 : x
  2. Step 2: Convert to fraction form
    289,571.52/399,608.43 = 162,248.03/x
  3. Step 3: Cross multiply
    289,571.52x = 399,608.43 × 162,248.03
  4. Step 4: Simplify right side
    289,571.52x = 64,835,680,538.89
  5. Step 5: Solve for x
    x = 64,835,680,538.89/289,571.52
  6. Step 6: Final answer
    x = 223,902.13

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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.