Finding the Fourth Proportional to 298,257.30, 447,011.37 and 178,402.68
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Solution
The fourth proportional to 298,257.30, 447,011.37 and 178,402.68 is: 267,379.96
Step by Step Solution
- Step 1: Write the proportion equation
298,257.30 : 447,011.37 = 178,402.68 : x - Step 2: Convert to fraction form
298,257.30/447,011.37 = 178,402.68/x - Step 3: Cross multiply
298,257.30x = 447,011.37 × 178,402.68 - Step 4: Simplify right side
298,257.30x = 79,748,026,398.47 - Step 5: Solve for x
x = 79,748,026,398.47/298,257.30 - Step 6: Final answer
x = 267,379.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.