Finding the Fourth Proportional to 209,390.86, 288,966.99 and 119,984.14
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Solution
The fourth proportional to 209,390.86, 288,966.99 and 119,984.14 is: 165,582.47
Step by Step Solution
- Step 1: Write the proportion equation
209,390.86 : 288,966.99 = 119,984.14 : x - Step 2: Convert to fraction form
209,390.86/288,966.99 = 119,984.14/x - Step 3: Cross multiply
209,390.86x = 288,966.99 × 119,984.14 - Step 4: Simplify right side
209,390.86x = 34,671,455,783.54 - Step 5: Solve for x
x = 34,671,455,783.54/209,390.86 - Step 6: Final answer
x = 165,582.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.