Finding the Fourth Proportional to 199,964.12, 300,021.06 and 103,841.42
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Solution
The fourth proportional to 199,964.12, 300,021.06 and 103,841.42 is: 155,801.02
Step by Step Solution
- Step 1: Write the proportion equation
199,964.12 : 300,021.06 = 103,841.42 : x - Step 2: Convert to fraction form
199,964.12/300,021.06 = 103,841.42/x - Step 3: Cross multiply
199,964.12x = 300,021.06 × 103,841.42 - Step 4: Simplify right side
199,964.12x = 31,154,612,900.31 - Step 5: Solve for x
x = 31,154,612,900.31/199,964.12 - Step 6: Final answer
x = 155,801.02
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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.