Finding the Fourth Proportional to 397,681.16, 548,791.86 and 216,396.68
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Solution
The fourth proportional to 397,681.16, 548,791.86 and 216,396.68 is: 298,622.99
Step by Step Solution
- Step 1: Write the proportion equation
397,681.16 : 548,791.86 = 216,396.68 : x - Step 2: Convert to fraction form
397,681.16/548,791.86 = 216,396.68/x - Step 3: Cross multiply
397,681.16x = 548,791.86 × 216,396.68 - Step 4: Simplify right side
397,681.16x = 118,756,736,515.03 - Step 5: Solve for x
x = 118,756,736,515.03/397,681.16 - Step 6: Final answer
x = 298,622.99
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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.