Finding the Fourth Proportional to 219,486.80, 302,887.44 and 122,690.16
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Solution
The fourth proportional to 219,486.80, 302,887.44 and 122,690.16 is: 169,309.99
Step by Step Solution
- Step 1: Write the proportion equation
219,486.80 : 302,887.44 = 122,690.16 : x - Step 2: Convert to fraction form
219,486.80/302,887.44 = 122,690.16/x - Step 3: Cross multiply
219,486.80x = 302,887.44 × 122,690.16 - Step 4: Simplify right side
219,486.80x = 37,161,308,475.59 - Step 5: Solve for x
x = 37,161,308,475.59/219,486.80 - Step 6: Final answer
x = 169,309.99
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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.