Finding the Fourth Proportional to 287,935.12, 397,358.88 and 160,607.96
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Solution
The fourth proportional to 287,935.12, 397,358.88 and 160,607.96 is: 221,643.68
Step by Step Solution
- Step 1: Write the proportion equation
287,935.12 : 397,358.88 = 160,607.96 : x - Step 2: Convert to fraction form
287,935.12/397,358.88 = 160,607.96/x - Step 3: Cross multiply
287,935.12x = 397,358.88 × 160,607.96 - Step 4: Simplify right side
287,935.12x = 63,818,999,104.68 - Step 5: Solve for x
x = 63,818,999,104.68/287,935.12 - Step 6: Final answer
x = 221,643.68
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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.