Finding the Fourth Proportional to 358,001.14, 493,918.62 and 221,986.12
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Solution
The fourth proportional to 358,001.14, 493,918.62 and 221,986.12 is: 306,264.61
Step by Step Solution
- Step 1: Write the proportion equation
358,001.14 : 493,918.62 = 221,986.12 : x - Step 2: Convert to fraction form
358,001.14/493,918.62 = 221,986.12/x - Step 3: Cross multiply
358,001.14x = 493,918.62 × 221,986.12 - Step 4: Simplify right side
358,001.14x = 109,643,078,049.55 - Step 5: Solve for x
x = 109,643,078,049.55/358,001.14 - Step 6: Final answer
x = 306,264.61
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1.5x scale
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.