Finding the Fourth Proportional to 280,177.56, 386,643.21 and 159,318.84
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Solution
The fourth proportional to 280,177.56, 386,643.21 and 159,318.84 is: 219,858.96
Step by Step Solution
- Step 1: Write the proportion equation
280,177.56 : 386,643.21 = 159,318.84 : x - Step 2: Convert to fraction form
280,177.56/386,643.21 = 159,318.84/x - Step 3: Cross multiply
280,177.56x = 386,643.21 × 159,318.84 - Step 4: Simplify right side
280,177.56x = 61,599,547,711.08 - Step 5: Solve for x
x = 61,599,547,711.08/280,177.56 - Step 6: Final answer
x = 219,858.96
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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.