Finding the Fourth Proportional to 197,726.72, 272,867.28 and 112,842.08
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Solution
The fourth proportional to 197,726.72, 272,867.28 and 112,842.08 is: 155,724.59
Step by Step Solution
- Step 1: Write the proportion equation
197,726.72 : 272,867.28 = 112,842.08 : x - Step 2: Convert to fraction form
197,726.72/272,867.28 = 112,842.08/x - Step 3: Cross multiply
197,726.72x = 272,867.28 × 112,842.08 - Step 4: Simplify right side
197,726.72x = 30,790,911,439.14 - Step 5: Solve for x
x = 30,790,911,439.14/197,726.72 - Step 6: Final answer
x = 155,724.59
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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.