Home / 282,428.45-389,755.94-153,367.19

Finding the Fourth Proportional to 282,428.45, 389,755.94 and 153,367.19

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Solution

The fourth proportional to 282,428.45, 389,755.94 and 153,367.19 is: 211,649.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,428.45 : 389,755.94 = 153,367.19 : x
  2. Step 2: Convert to fraction form
    282,428.45/389,755.94 = 153,367.19/x
  3. Step 3: Cross multiply
    282,428.45x = 389,755.94 × 153,367.19
  4. Step 4: Simplify right side
    282,428.45x = 59,775,770,587.99
  5. Step 5: Solve for x
    x = 59,775,770,587.99/282,428.45
  6. Step 6: Final answer
    x = 211,649.26

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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.