Finding the Fourth Proportional to 358,431.48, 494,631.50 and 197,283.06
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Solution
The fourth proportional to 358,431.48, 494,631.50 and 197,283.06 is: 272,248.45
Step by Step Solution
- Step 1: Write the proportion equation
358,431.48 : 494,631.50 = 197,283.06 : x - Step 2: Convert to fraction form
358,431.48/494,631.50 = 197,283.06/x - Step 3: Cross multiply
358,431.48x = 494,631.50 × 197,283.06 - Step 4: Simplify right side
358,431.48x = 97,582,414,905.97 - Step 5: Solve for x
x = 97,582,414,905.97/358,431.48 - Step 6: Final answer
x = 272,248.45
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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.