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Finding the Fourth Proportional to 275,515.66, 380,166.51 and 162,323.02

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Solution

The fourth proportional to 275,515.66, 380,166.51 and 162,323.02 is: 223,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,515.66 : 380,166.51 = 162,323.02 : x
  2. Step 2: Convert to fraction form
    275,515.66/380,166.51 = 162,323.02/x
  3. Step 3: Cross multiply
    275,515.66x = 380,166.51 × 162,323.02
  4. Step 4: Simplify right side
    275,515.66x = 61,709,776,006.06
  5. Step 5: Solve for x
    x = 61,709,776,006.06/275,515.66
  6. Step 6: Final answer
    x = 223,979.20

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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.