Finding the Fourth Proportional to 403,731.14, 556,689.92 and 258,343.02
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Solution
The fourth proportional to 403,731.14, 556,689.92 and 258,343.02 is: 356,219.63
Step by Step Solution
- Step 1: Write the proportion equation
403,731.14 : 556,689.92 = 258,343.02 : x - Step 2: Convert to fraction form
403,731.14/556,689.92 = 258,343.02/x - Step 3: Cross multiply
403,731.14x = 556,689.92 × 258,343.02 - Step 4: Simplify right side
403,731.14x = 143,816,953,844.64 - Step 5: Solve for x
x = 143,816,953,844.64/403,731.14 - Step 6: Final answer
x = 356,219.63
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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.