Finding the Fourth Proportional to 203,510.70, 280,825.95 and 112,864.99
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Solution
The fourth proportional to 203,510.70, 280,825.95 and 112,864.99 is: 155,743.25
Step by Step Solution
- Step 1: Write the proportion equation
203,510.70 : 280,825.95 = 112,864.99 : x - Step 2: Convert to fraction form
203,510.70/280,825.95 = 112,864.99/x - Step 3: Cross multiply
203,510.70x = 280,825.95 × 112,864.99 - Step 4: Simplify right side
203,510.70x = 31,695,418,038.49 - Step 5: Solve for x
x = 31,695,418,038.49/203,510.70 - Step 6: Final answer
x = 155,743.25
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.