Finding the Fourth Proportional to 171,957.80, 257,936.70 and 118,813.70
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Solution
The fourth proportional to 171,957.80, 257,936.70 and 118,813.70 is: 178,220.55
Step by Step Solution
- Step 1: Write the proportion equation
171,957.80 : 257,936.70 = 118,813.70 : x - Step 2: Convert to fraction form
171,957.80/257,936.70 = 118,813.70/x - Step 3: Cross multiply
171,957.80x = 257,936.70 × 118,813.70 - Step 4: Simplify right side
171,957.80x = 30,646,413,692.79 - Step 5: Solve for x
x = 30,646,413,692.79/171,957.80 - Step 6: Final answer
x = 178,220.55
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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.