Finding the Fourth Proportional to 402,417.42, 603,250.92 and 135,991.62
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Solution
The fourth proportional to 402,417.42, 603,250.92 and 135,991.62 is: 203,860.63
Step by Step Solution
- Step 1: Write the proportion equation
402,417.42 : 603,250.92 = 135,991.62 : x - Step 2: Convert to fraction form
402,417.42/603,250.92 = 135,991.62/x - Step 3: Cross multiply
402,417.42x = 603,250.92 × 135,991.62 - Step 4: Simplify right side
402,417.42x = 82,037,069,877.29 - Step 5: Solve for x
x = 82,037,069,877.29/402,417.42 - Step 6: Final answer
x = 203,860.63
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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.