Finding the Fourth Proportional to 286,536.78, 429,882.93 and 86,863.68
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Solution
The fourth proportional to 286,536.78, 429,882.93 and 86,863.68 is: 130,319.09
Step by Step Solution
- Step 1: Write the proportion equation
286,536.78 : 429,882.93 = 86,863.68 : x - Step 2: Convert to fraction form
286,536.78/429,882.93 = 86,863.68/x - Step 3: Cross multiply
286,536.78x = 429,882.93 × 86,863.68 - Step 4: Simplify right side
286,536.78x = 37,341,213,268.98 - Step 5: Solve for x
x = 37,341,213,268.98/286,536.78 - Step 6: Final answer
x = 130,319.09
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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.