Finding the Fourth Proportional to 323,982.74, 485,918.72 and 87,270.06
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Solution
The fourth proportional to 323,982.74, 485,918.72 and 87,270.06 is: 130,890.17
Step by Step Solution
- Step 1: Write the proportion equation
323,982.74 : 485,918.72 = 87,270.06 : x - Step 2: Convert to fraction form
323,982.74/485,918.72 = 87,270.06/x - Step 3: Cross multiply
323,982.74x = 485,918.72 × 87,270.06 - Step 4: Simplify right side
323,982.74x = 42,406,154,409.13 - Step 5: Solve for x
x = 42,406,154,409.13/323,982.74 - Step 6: Final answer
x = 130,890.17
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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.