Finding the Fourth Proportional to 389,171.39, 583,505.51 and 152,537.99
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Solution
The fourth proportional to 389,171.39, 583,505.51 and 152,537.99 is: 228,708.37
Step by Step Solution
- Step 1: Write the proportion equation
389,171.39 : 583,505.51 = 152,537.99 : x - Step 2: Convert to fraction form
389,171.39/583,505.51 = 152,537.99/x - Step 3: Cross multiply
389,171.39x = 583,505.51 × 152,537.99 - Step 4: Simplify right side
389,171.39x = 89,006,753,969.11 - Step 5: Solve for x
x = 89,006,753,969.11/389,171.39 - Step 6: Final answer
x = 228,708.37
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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.