Finding the Fourth Proportional to 171,623.70, 257,435.55 and 145,703.70
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Solution
The fourth proportional to 171,623.70, 257,435.55 and 145,703.70 is: 218,555.55
Step by Step Solution
- Step 1: Write the proportion equation
171,623.70 : 257,435.55 = 145,703.70 : x - Step 2: Convert to fraction form
171,623.70/257,435.55 = 145,703.70/x - Step 3: Cross multiply
171,623.70x = 257,435.55 × 145,703.70 - Step 4: Simplify right side
171,623.70x = 37,509,312,146.54 - Step 5: Solve for x
x = 37,509,312,146.54/171,623.70 - Step 6: Final answer
x = 218,555.55
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1.5x scale
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.