Finding the Fourth Proportional to 296,372.16, 408,990.42 and 160,403.28
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Solution
The fourth proportional to 296,372.16, 408,990.42 and 160,403.28 is: 221,354.82
Step by Step Solution
- Step 1: Write the proportion equation
296,372.16 : 408,990.42 = 160,403.28 : x - Step 2: Convert to fraction form
296,372.16/408,990.42 = 160,403.28/x - Step 3: Cross multiply
296,372.16x = 408,990.42 × 160,403.28 - Step 4: Simplify right side
296,372.16x = 65,603,404,856.58 - Step 5: Solve for x
x = 65,603,404,856.58/296,372.16 - Step 6: Final answer
x = 221,354.82
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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.