Finding the Fourth Proportional to 286,341.68, 429,517.56 and 86,664.08
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Solution
The fourth proportional to 286,341.68, 429,517.56 and 86,664.08 is: 129,997.65
Step by Step Solution
- Step 1: Write the proportion equation
286,341.68 : 429,517.56 = 86,664.08 : x - Step 2: Convert to fraction form
286,341.68/429,517.56 = 86,664.08/x - Step 3: Cross multiply
286,341.68x = 429,517.56 × 86,664.08 - Step 4: Simplify right side
286,341.68x = 37,223,744,181.24 - Step 5: Solve for x
x = 37,223,744,181.24/286,341.68 - Step 6: Final answer
x = 129,997.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.