Finding the Fourth Proportional to 344.08, 515.70 and 307.63
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Solution
The fourth proportional to 344.08, 515.70 and 307.63 is: 461.07
Step by Step Solution
- Step 1: Write the proportion equation
344.08 : 515.70 = 307.63 : x - Step 2: Convert to fraction form
344.08/515.70 = 307.63/x - Step 3: Cross multiply
344.08x = 515.70 × 307.63 - Step 4: Simplify right side
344.08x = 158,644.79 - Step 5: Solve for x
x = 158,644.79/344.08 - Step 6: Final answer
x = 461.07
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.