Finding the Fourth Proportional to 412.68, 616.62 and 347.88
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Solution
The fourth proportional to 412.68, 616.62 and 347.88 is: 519.80
Step by Step Solution
- Step 1: Write the proportion equation
412.68 : 616.62 = 347.88 : x - Step 2: Convert to fraction form
412.68/616.62 = 347.88/x - Step 3: Cross multiply
412.68x = 616.62 × 347.88 - Step 4: Simplify right side
412.68x = 214,506.68 - Step 5: Solve for x
x = 214,506.68/412.68 - Step 6: Final answer
x = 519.80
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.