Finding the Fourth Proportional to 211,289.70, 316,934.55 and 132,557.70
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Solution
The fourth proportional to 211,289.70, 316,934.55 and 132,557.70 is: 198,836.55
Step by Step Solution
- Step 1: Write the proportion equation
211,289.70 : 316,934.55 = 132,557.70 : x - Step 2: Convert to fraction form
211,289.70/316,934.55 = 132,557.70/x - Step 3: Cross multiply
211,289.70x = 316,934.55 × 132,557.70 - Step 4: Simplify right side
211,289.70x = 42,012,114,998.54 - Step 5: Solve for x
x = 42,012,114,998.54/211,289.70 - Step 6: Final answer
x = 198,836.55
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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.