Finding the Fourth Proportional to 382,135.60, 573,430.20 and 145,502.20
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Solution
The fourth proportional to 382,135.60, 573,430.20 and 145,502.20 is: 218,339.66
Step by Step Solution
- Step 1: Write the proportion equation
382,135.60 : 573,430.20 = 145,502.20 : x - Step 2: Convert to fraction form
382,135.60/573,430.20 = 145,502.20/x - Step 3: Cross multiply
382,135.60x = 573,430.20 × 145,502.20 - Step 4: Simplify right side
382,135.60x = 83,435,355,646.44 - Step 5: Solve for x
x = 83,435,355,646.44/382,135.60 - Step 6: Final answer
x = 218,339.66
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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.