Finding the Fourth Proportional to 352,901.08, 529,353.40 and 86,661.70
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Solution
The fourth proportional to 352,901.08, 529,353.40 and 86,661.70 is: 129,992.98
Step by Step Solution
- Step 1: Write the proportion equation
352,901.08 : 529,353.40 = 86,661.70 : x - Step 2: Convert to fraction form
352,901.08/529,353.40 = 86,661.70/x - Step 3: Cross multiply
352,901.08x = 529,353.40 × 86,661.70 - Step 4: Simplify right side
352,901.08x = 45,874,664,410.97 - Step 5: Solve for x
x = 45,874,664,410.97/352,901.08 - Step 6: Final answer
x = 129,992.98
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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.