Finding the Fourth Proportional to 323,982.61, 485,918.53 and 87,269.94
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Solution
The fourth proportional to 323,982.61, 485,918.53 and 87,269.94 is: 130,889.99
Step by Step Solution
- Step 1: Write the proportion equation
323,982.61 : 485,918.53 = 87,269.94 : x - Step 2: Convert to fraction form
323,982.61/485,918.53 = 87,269.94/x - Step 3: Cross multiply
323,982.61x = 485,918.53 × 87,269.94 - Step 4: Simplify right side
323,982.61x = 42,406,080,957.99 - Step 5: Solve for x
x = 42,406,080,957.99/323,982.61 - Step 6: Final answer
x = 130,889.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.