Home / 282,011.76-389,172.60-161,151.66

Finding the Fourth Proportional to 282,011.76, 389,172.60 and 161,151.66

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Solution

The fourth proportional to 282,011.76, 389,172.60 and 161,151.66 is: 222,387.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,011.76 : 389,172.60 = 161,151.66 : x
  2. Step 2: Convert to fraction form
    282,011.76/389,172.60 = 161,151.66/x
  3. Step 3: Cross multiply
    282,011.76x = 389,172.60 × 161,151.66
  4. Step 4: Simplify right side
    282,011.76x = 62,715,810,516.52
  5. Step 5: Solve for x
    x = 62,715,810,516.52/282,011.76
  6. Step 6: Final answer
    x = 222,387.22

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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.