Finding the Fourth Proportional to 207,874.17, 286,675.07 and 136,228.05
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Solution
The fourth proportional to 207,874.17, 286,675.07 and 136,228.05 is: 187,869.35
Step by Step Solution
- Step 1: Write the proportion equation
207,874.17 : 286,675.07 = 136,228.05 : x - Step 2: Convert to fraction form
207,874.17/286,675.07 = 136,228.05/x - Step 3: Cross multiply
207,874.17x = 286,675.07 × 136,228.05 - Step 4: Simplify right side
207,874.17x = 39,053,185,088.57 - Step 5: Solve for x
x = 39,053,185,088.57/207,874.17 - Step 6: Final answer
x = 187,869.35
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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.