Finding the Fourth Proportional to 207,719.62, 286,652.70 and 112,226.02
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Solution
The fourth proportional to 207,719.62, 286,652.70 and 112,226.02 is: 154,871.70
Step by Step Solution
- Step 1: Write the proportion equation
207,719.62 : 286,652.70 = 112,226.02 : x - Step 2: Convert to fraction form
207,719.62/286,652.70 = 112,226.02/x - Step 3: Cross multiply
207,719.62x = 286,652.70 × 112,226.02 - Step 4: Simplify right side
207,719.62x = 32,169,891,643.25 - Step 5: Solve for x
x = 32,169,891,643.25/207,719.62 - Step 6: Final answer
x = 154,871.70
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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.