Finding the Fourth Proportional to 252,490.18, 348,436.16 and 139,312.92
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Solution
The fourth proportional to 252,490.18, 348,436.16 and 139,312.92 is: 192,251.67
Step by Step Solution
- Step 1: Write the proportion equation
252,490.18 : 348,436.16 = 139,312.92 : x - Step 2: Convert to fraction form
252,490.18/348,436.16 = 139,312.92/x - Step 3: Cross multiply
252,490.18x = 348,436.16 × 139,312.92 - Step 4: Simplify right side
252,490.18x = 48,541,658,883.19 - Step 5: Solve for x
x = 48,541,658,883.19/252,490.18 - Step 6: Final answer
x = 192,251.67
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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.