Finding the Fourth Proportional to 490,492.49, 735,731.43 and 135,498.65
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Solution
The fourth proportional to 490,492.49, 735,731.43 and 135,498.65 is: 203,245.95
Step by Step Solution
- Step 1: Write the proportion equation
490,492.49 : 735,731.43 = 135,498.65 : x - Step 2: Convert to fraction form
490,492.49/735,731.43 = 135,498.65/x - Step 3: Cross multiply
490,492.49x = 735,731.43 × 135,498.65 - Step 4: Simplify right side
490,492.49x = 99,690,611,848.91 - Step 5: Solve for x
x = 99,690,611,848.91/490,492.49 - Step 6: Final answer
x = 203,245.95
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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.