Finding the Fourth Proportional to 305,350.95, 421,376.12 and 176,285.07
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Solution
The fourth proportional to 305,350.95, 421,376.12 and 176,285.07 is: 243,268.67
Step by Step Solution
- Step 1: Write the proportion equation
305,350.95 : 421,376.12 = 176,285.07 : x - Step 2: Convert to fraction form
305,350.95/421,376.12 = 176,285.07/x - Step 3: Cross multiply
305,350.95x = 421,376.12 × 176,285.07 - Step 4: Simplify right side
305,350.95x = 74,282,320,174.34 - Step 5: Solve for x
x = 74,282,320,174.34/305,350.95 - Step 6: Final answer
x = 243,268.67
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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.