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Finding the Fourth Proportional to 289,602.62, 399,662.43 and 162,273.50

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Solution

The fourth proportional to 289,602.62, 399,662.43 and 162,273.50 is: 223,943.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,602.62 : 399,662.43 = 162,273.50 : x
  2. Step 2: Convert to fraction form
    289,602.62/399,662.43 = 162,273.50/x
  3. Step 3: Cross multiply
    289,602.62x = 399,662.43 × 162,273.50
  4. Step 4: Simplify right side
    289,602.62x = 64,854,621,334.61
  5. Step 5: Solve for x
    x = 64,854,621,334.61/289,602.62
  6. Step 6: Final answer
    x = 223,943.49

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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.