Finding the Fourth Proportional to 356,354.80, 534,531.84 and 145,993.12
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Solution
The fourth proportional to 356,354.80, 534,531.84 and 145,993.12 is: 218,989.53
Step by Step Solution
- Step 1: Write the proportion equation
356,354.80 : 534,531.84 = 145,993.12 : x - Step 2: Convert to fraction form
356,354.80/534,531.84 = 145,993.12/x - Step 3: Cross multiply
356,354.80x = 534,531.84 × 145,993.12 - Step 4: Simplify right side
356,354.80x = 78,037,971,060.94 - Step 5: Solve for x
x = 78,037,971,060.94/356,354.80 - Step 6: Final answer
x = 218,989.53
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1.5x scale
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.