Finding the Fourth Proportional to 218,483.36, 301,507.68 and 122,991.52
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Solution
The fourth proportional to 218,483.36, 301,507.68 and 122,991.52 is: 169,728.66
Step by Step Solution
- Step 1: Write the proportion equation
218,483.36 : 301,507.68 = 122,991.52 : x - Step 2: Convert to fraction form
218,483.36/301,507.68 = 122,991.52/x - Step 3: Cross multiply
218,483.36x = 301,507.68 × 122,991.52 - Step 4: Simplify right side
218,483.36x = 37,082,887,854.87 - Step 5: Solve for x
x = 37,082,887,854.87/218,483.36 - Step 6: Final answer
x = 169,728.66
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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.