Finding the Fourth Proportional to 211,097.10, 316,536.30 and 77,908.80
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Solution
The fourth proportional to 211,097.10, 316,536.30 and 77,908.80 is: 116,822.84
Step by Step Solution
- Step 1: Write the proportion equation
211,097.10 : 316,536.30 = 77,908.80 : x - Step 2: Convert to fraction form
211,097.10/316,536.30 = 77,908.80/x - Step 3: Cross multiply
211,097.10x = 316,536.30 × 77,908.80 - Step 4: Simplify right side
211,097.10x = 24,660,963,289.44 - Step 5: Solve for x
x = 24,660,963,289.44/211,097.10 - Step 6: Final answer
x = 116,822.84
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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.