Home / 282,165.18-389,399.18-154,845.33

Finding the Fourth Proportional to 282,165.18, 389,399.18 and 154,845.33

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Solution

The fourth proportional to 282,165.18, 389,399.18 and 154,845.33 is: 213,692.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,165.18 : 389,399.18 = 154,845.33 : x
  2. Step 2: Convert to fraction form
    282,165.18/389,399.18 = 154,845.33/x
  3. Step 3: Cross multiply
    282,165.18x = 389,399.18 × 154,845.33
  4. Step 4: Simplify right side
    282,165.18x = 60,296,643,754.60
  5. Step 5: Solve for x
    x = 60,296,643,754.60/282,165.18
  6. Step 6: Final answer
    x = 213,692.72

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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.