Finding the Fourth Proportional to 471,955.80, 707,933.70 and 139,531.80
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Solution
The fourth proportional to 471,955.80, 707,933.70 and 139,531.80 is: 209,297.70
Step by Step Solution
- Step 1: Write the proportion equation
471,955.80 : 707,933.70 = 139,531.80 : x - Step 2: Convert to fraction form
471,955.80/707,933.70 = 139,531.80/x - Step 3: Cross multiply
471,955.80x = 707,933.70 × 139,531.80 - Step 4: Simplify right side
471,955.80x = 98,779,263,441.66 - Step 5: Solve for x
x = 98,779,263,441.66/471,955.80 - Step 6: Final answer
x = 209,297.70
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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.