Finding the Fourth Proportional to 289,878.84, 399,956.81 and 167,341.23
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Solution
The fourth proportional to 289,878.84, 399,956.81 and 167,341.23 is: 230,887.03
Step by Step Solution
- Step 1: Write the proportion equation
289,878.84 : 399,956.81 = 167,341.23 : x - Step 2: Convert to fraction form
289,878.84/399,956.81 = 167,341.23/x - Step 3: Cross multiply
289,878.84x = 399,956.81 × 167,341.23 - Step 4: Simplify right side
289,878.84x = 66,929,263,695.57 - Step 5: Solve for x
x = 66,929,263,695.57/289,878.84 - Step 6: Final answer
x = 230,887.03
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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.