Finding the Fourth Proportional to 218,812.98, 301,812.03 and 133,972.02
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Solution
The fourth proportional to 218,812.98, 301,812.03 and 133,972.02 is: 184,789.62
Step by Step Solution
- Step 1: Write the proportion equation
218,812.98 : 301,812.03 = 133,972.02 : x - Step 2: Convert to fraction form
218,812.98/301,812.03 = 133,972.02/x - Step 3: Cross multiply
218,812.98x = 301,812.03 × 133,972.02 - Step 4: Simplify right side
218,812.98x = 40,434,367,319.40 - Step 5: Solve for x
x = 40,434,367,319.40/218,812.98 - Step 6: Final answer
x = 184,789.62
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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.