Finding the Fourth Proportional to 298,089.18, 447,133.29 and 76,473.18
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Solution
The fourth proportional to 298,089.18, 447,133.29 and 76,473.18 is: 114,709.65
Step by Step Solution
- Step 1: Write the proportion equation
298,089.18 : 447,133.29 = 76,473.18 : x - Step 2: Convert to fraction form
298,089.18/447,133.29 = 76,473.18/x - Step 3: Cross multiply
298,089.18x = 447,133.29 × 76,473.18 - Step 4: Simplify right side
298,089.18x = 34,193,704,570.16 - Step 5: Solve for x
x = 34,193,704,570.16/298,089.18 - Step 6: Final answer
x = 114,709.65
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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.