Finding the Fourth Proportional to 402,629.80, 603,944.70 and 216,005.80
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Solution
The fourth proportional to 402,629.80, 603,944.70 and 216,005.80 is: 324,008.70
Step by Step Solution
- Step 1: Write the proportion equation
402,629.80 : 603,944.70 = 216,005.80 : x - Step 2: Convert to fraction form
402,629.80/603,944.70 = 216,005.80/x - Step 3: Cross multiply
402,629.80x = 603,944.70 × 216,005.80 - Step 4: Simplify right side
402,629.80x = 130,455,558,079.26 - Step 5: Solve for x
x = 130,455,558,079.26/402,629.80 - Step 6: Final answer
x = 324,008.70
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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.