Finding the Fourth Proportional to 282,448.52, 389,781.99 and 155,124.11
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Solution
The fourth proportional to 282,448.52, 389,781.99 and 155,124.11 is: 214,072.94
Step by Step Solution
- Step 1: Write the proportion equation
282,448.52 : 389,781.99 = 155,124.11 : x - Step 2: Convert to fraction form
282,448.52/389,781.99 = 155,124.11/x - Step 3: Cross multiply
282,448.52x = 389,781.99 × 155,124.11 - Step 4: Simplify right side
282,448.52x = 60,464,585,267.23 - Step 5: Solve for x
x = 60,464,585,267.23/282,448.52 - Step 6: Final answer
x = 214,072.94
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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.