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Finding the Fourth Proportional to 289,550.43, 399,583.53 and 162,223.29

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Solution

The fourth proportional to 289,550.43, 399,583.53 and 162,223.29 is: 223,870.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,550.43 : 399,583.53 = 162,223.29 : x
  2. Step 2: Convert to fraction form
    289,550.43/399,583.53 = 162,223.29/x
  3. Step 3: Cross multiply
    289,550.43x = 399,583.53 × 162,223.29
  4. Step 4: Simplify right side
    289,550.43x = 64,821,754,866.41
  5. Step 5: Solve for x
    x = 64,821,754,866.41/289,550.43
  6. Step 6: Final answer
    x = 223,870.35

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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.