Finding the Fourth Proportional to 207,910.97, 286,916.95 and 112,417.46
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Solution
The fourth proportional to 207,910.97, 286,916.95 and 112,417.46 is: 155,135.99
Step by Step Solution
- Step 1: Write the proportion equation
207,910.97 : 286,916.95 = 112,417.46 : x - Step 2: Convert to fraction form
207,910.97/286,916.95 = 112,417.46/x - Step 3: Cross multiply
207,910.97x = 286,916.95 × 112,417.46 - Step 4: Simplify right side
207,910.97x = 32,254,474,749.95 - Step 5: Solve for x
x = 32,254,474,749.95/207,910.97 - Step 6: Final answer
x = 155,135.99
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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.