Finding the Fourth Proportional to 287,433.18, 396,670.05 and 160,108.74
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Solution
The fourth proportional to 287,433.18, 396,670.05 and 160,108.74 is: 220,956.89
Step by Step Solution
- Step 1: Write the proportion equation
287,433.18 : 396,670.05 = 160,108.74 : x - Step 2: Convert to fraction form
287,433.18/396,670.05 = 160,108.74/x - Step 3: Cross multiply
287,433.18x = 396,670.05 × 160,108.74 - Step 4: Simplify right side
287,433.18x = 63,510,341,901.24 - Step 5: Solve for x
x = 63,510,341,901.24/287,433.18 - Step 6: Final answer
x = 220,956.89
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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.