Finding the Fourth Proportional to 215,623.80, 323,435.70 and 97,351.80
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Solution
The fourth proportional to 215,623.80, 323,435.70 and 97,351.80 is: 146,027.70
Step by Step Solution
- Step 1: Write the proportion equation
215,623.80 : 323,435.70 = 97,351.80 : x - Step 2: Convert to fraction form
215,623.80/323,435.70 = 97,351.80/x - Step 3: Cross multiply
215,623.80x = 323,435.70 × 97,351.80 - Step 4: Simplify right side
215,623.80x = 31,487,047,579.26 - Step 5: Solve for x
x = 31,487,047,579.26/215,623.80 - Step 6: Final answer
x = 146,027.70
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1.5x scale
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.