Finding the Fourth Proportional to 171,661.68, 257,207.40 and 121,493.52
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Solution
The fourth proportional to 171,661.68, 257,207.40 and 121,493.52 is: 182,038.49
Step by Step Solution
- Step 1: Write the proportion equation
171,661.68 : 257,207.40 = 121,493.52 : x - Step 2: Convert to fraction form
171,661.68/257,207.40 = 121,493.52/x - Step 3: Cross multiply
171,661.68x = 257,207.40 × 121,493.52 - Step 4: Simplify right side
171,661.68x = 31,249,032,396.05 - Step 5: Solve for x
x = 31,249,032,396.05/171,661.68 - Step 6: Final answer
x = 182,038.49
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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.