Finding the Fourth Proportional to 171,417.88, 257,028.36 and 91,357.28
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Solution
The fourth proportional to 171,417.88, 257,028.36 and 91,357.28 is: 136,983.45
Step by Step Solution
- Step 1: Write the proportion equation
171,417.88 : 257,028.36 = 91,357.28 : x - Step 2: Convert to fraction form
171,417.88/257,028.36 = 91,357.28/x - Step 3: Cross multiply
171,417.88x = 257,028.36 × 91,357.28 - Step 4: Simplify right side
171,417.88x = 23,481,411,852.46 - Step 5: Solve for x
x = 23,481,411,852.46/171,417.88 - Step 6: Final answer
x = 136,983.45
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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.