Finding the Fourth Proportional to 219,987.09, 303,582.18 and 119,385.09
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Solution
The fourth proportional to 219,987.09, 303,582.18 and 119,385.09 is: 164,751.42
Step by Step Solution
- Step 1: Write the proportion equation
219,987.09 : 303,582.18 = 119,385.09 : x - Step 2: Convert to fraction form
219,987.09/303,582.18 = 119,385.09/x - Step 3: Cross multiply
219,987.09x = 303,582.18 × 119,385.09 - Step 4: Simplify right side
219,987.09x = 36,243,185,881.70 - Step 5: Solve for x
x = 36,243,185,881.70/219,987.09 - Step 6: Final answer
x = 164,751.42
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1.5x scale
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.