Finding the Fourth Proportional to 347,779.84, 479,928.96 and 188,803.84
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Solution
The fourth proportional to 347,779.84, 479,928.96 and 188,803.84 is: 260,545.38
Step by Step Solution
- Step 1: Write the proportion equation
347,779.84 : 479,928.96 = 188,803.84 : x - Step 2: Convert to fraction form
347,779.84/479,928.96 = 188,803.84/x - Step 3: Cross multiply
347,779.84x = 479,928.96 × 188,803.84 - Step 4: Simplify right side
347,779.84x = 90,612,430,575.21 - Step 5: Solve for x
x = 90,612,430,575.21/347,779.84 - Step 6: Final answer
x = 260,545.38
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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.