Finding the Fourth Proportional to 193,164.74, 289,690.94 and 74,809.70
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Solution
The fourth proportional to 193,164.74, 289,690.94 and 74,809.70 is: 112,192.80
Step by Step Solution
- Step 1: Write the proportion equation
193,164.74 : 289,690.94 = 74,809.70 : x - Step 2: Convert to fraction form
193,164.74/289,690.94 = 74,809.70/x - Step 3: Cross multiply
193,164.74x = 289,690.94 × 74,809.70 - Step 4: Simplify right side
193,164.74x = 21,671,692,314.12 - Step 5: Solve for x
x = 21,671,692,314.12/193,164.74 - Step 6: Final answer
x = 112,192.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.