Finding the Fourth Proportional to 214,970.13, 322,455.19 and 74,728.75
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Solution
The fourth proportional to 214,970.13, 322,455.19 and 74,728.75 is: 112,093.12
Step by Step Solution
- Step 1: Write the proportion equation
214,970.13 : 322,455.19 = 74,728.75 : x - Step 2: Convert to fraction form
214,970.13/322,455.19 = 74,728.75/x - Step 3: Cross multiply
214,970.13x = 322,455.19 × 74,728.75 - Step 4: Simplify right side
214,970.13x = 24,096,673,279.71 - Step 5: Solve for x
x = 24,096,673,279.71/214,970.13 - Step 6: Final answer
x = 112,093.12
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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.