Finding the Fourth Proportional to 207,925.79, 286,982.06 and 131,396.18
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Solution
The fourth proportional to 207,925.79, 286,982.06 and 131,396.18 is: 181,354.82
Step by Step Solution
- Step 1: Write the proportion equation
207,925.79 : 286,982.06 = 131,396.18 : x - Step 2: Convert to fraction form
207,925.79/286,982.06 = 131,396.18/x - Step 3: Cross multiply
207,925.79x = 286,982.06 × 131,396.18 - Step 4: Simplify right side
207,925.79x = 37,708,344,320.64 - Step 5: Solve for x
x = 37,708,344,320.64/207,925.79 - Step 6: Final answer
x = 181,354.82
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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.