Finding the Fourth Proportional to 286,361.48, 429,541.68 and 159,979.88
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Solution
The fourth proportional to 286,361.48, 429,541.68 and 159,979.88 is: 239,969.52
Step by Step Solution
- Step 1: Write the proportion equation
286,361.48 : 429,541.68 = 159,979.88 : x - Step 2: Convert to fraction form
286,361.48/429,541.68 = 159,979.88/x - Step 3: Cross multiply
286,361.48x = 429,541.68 × 159,979.88 - Step 4: Simplify right side
286,361.48x = 68,718,026,421.40 - Step 5: Solve for x
x = 68,718,026,421.40/286,361.48 - Step 6: Final answer
x = 239,969.52
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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.