Finding the Fourth Proportional to 278,761.91, 384,693.00 and 151,437.80
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Solution
The fourth proportional to 278,761.91, 384,693.00 and 151,437.80 is: 208,985.02
Step by Step Solution
- Step 1: Write the proportion equation
278,761.91 : 384,693.00 = 151,437.80 : x - Step 2: Convert to fraction form
278,761.91/384,693.00 = 151,437.80/x - Step 3: Cross multiply
278,761.91x = 384,693.00 × 151,437.80 - Step 4: Simplify right side
278,761.91x = 58,257,061,989.24 - Step 5: Solve for x
x = 58,257,061,989.24/278,761.91 - Step 6: Final answer
x = 208,985.02
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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.