Finding the Fourth Proportional to 211,921.68, 317,898.93 and 60,116.20
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Solution
The fourth proportional to 211,921.68, 317,898.93 and 60,116.20 is: 90,178.95
Step by Step Solution
- Step 1: Write the proportion equation
211,921.68 : 317,898.93 = 60,116.20 : x - Step 2: Convert to fraction form
211,921.68/317,898.93 = 60,116.20/x - Step 3: Cross multiply
211,921.68x = 317,898.93 × 60,116.20 - Step 4: Simplify right side
211,921.68x = 19,110,874,860.92 - Step 5: Solve for x
x = 19,110,874,860.92/211,921.68 - Step 6: Final answer
x = 90,178.95
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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.