Finding the Fourth Proportional to 380,943.96, 571,502.06 and 191,495.09
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Solution
The fourth proportional to 380,943.96, 571,502.06 and 191,495.09 is: 287,285.92
Step by Step Solution
- Step 1: Write the proportion equation
380,943.96 : 571,502.06 = 191,495.09 : x - Step 2: Convert to fraction form
380,943.96/571,502.06 = 191,495.09/x - Step 3: Cross multiply
380,943.96x = 571,502.06 × 191,495.09 - Step 4: Simplify right side
380,943.96x = 109,439,835,850.99 - Step 5: Solve for x
x = 109,439,835,850.99/380,943.96 - Step 6: Final answer
x = 287,285.92
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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.