Finding the Fourth Proportional to 353,149.40, 529,724.10 and 313,491.80
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Solution
The fourth proportional to 353,149.40, 529,724.10 and 313,491.80 is: 470,237.70
Step by Step Solution
- Step 1: Write the proportion equation
353,149.40 : 529,724.10 = 313,491.80 : x - Step 2: Convert to fraction form
353,149.40/529,724.10 = 313,491.80/x - Step 3: Cross multiply
353,149.40x = 529,724.10 × 313,491.80 - Step 4: Simplify right side
353,149.40x = 166,064,161,612.38 - Step 5: Solve for x
x = 166,064,161,612.38/353,149.40 - Step 6: Final answer
x = 470,237.70
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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.