Finding the Fourth Proportional to 341,979.84, 471,989.58 and 231,548.40
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Solution
The fourth proportional to 341,979.84, 471,989.58 and 231,548.40 is: 319,575.66
Step by Step Solution
- Step 1: Write the proportion equation
341,979.84 : 471,989.58 = 231,548.40 : x - Step 2: Convert to fraction form
341,979.84/471,989.58 = 231,548.40/x - Step 3: Cross multiply
341,979.84x = 471,989.58 × 231,548.40 - Step 4: Simplify right side
341,979.84x = 109,288,432,065.67 - Step 5: Solve for x
x = 109,288,432,065.67/341,979.84 - Step 6: Final answer
x = 319,575.66
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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.