Finding the Fourth Proportional to 157,415.30, 236,122.95 and 141,085.70
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Solution
The fourth proportional to 157,415.30, 236,122.95 and 141,085.70 is: 211,628.55
Step by Step Solution
- Step 1: Write the proportion equation
157,415.30 : 236,122.95 = 141,085.70 : x - Step 2: Convert to fraction form
157,415.30/236,122.95 = 141,085.70/x - Step 3: Cross multiply
157,415.30x = 236,122.95 × 141,085.70 - Step 4: Simplify right side
157,415.30x = 33,313,571,686.82 - Step 5: Solve for x
x = 33,313,571,686.82/157,415.30 - Step 6: Final answer
x = 211,628.55
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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.