Finding the Fourth Proportional to 218,769.12, 301,901.52 and 118,167.12
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Solution
The fourth proportional to 218,769.12, 301,901.52 and 118,167.12 is: 163,070.70
Step by Step Solution
- Step 1: Write the proportion equation
218,769.12 : 301,901.52 = 118,167.12 : x - Step 2: Convert to fraction form
218,769.12/301,901.52 = 118,167.12/x - Step 3: Cross multiply
218,769.12x = 301,901.52 × 118,167.12 - Step 4: Simplify right side
218,769.12x = 35,674,833,142.02 - Step 5: Solve for x
x = 35,674,833,142.02/218,769.12 - Step 6: Final answer
x = 163,070.70
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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.