Finding the Fourth Proportional to 624,153.80, 936,230.70 and 309,225.80
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Solution
The fourth proportional to 624,153.80, 936,230.70 and 309,225.80 is: 463,838.70
Step by Step Solution
- Step 1: Write the proportion equation
624,153.80 : 936,230.70 = 309,225.80 : x - Step 2: Convert to fraction form
624,153.80/936,230.70 = 309,225.80/x - Step 3: Cross multiply
624,153.80x = 936,230.70 × 309,225.80 - Step 4: Simplify right side
624,153.80x = 289,506,687,192.06 - Step 5: Solve for x
x = 289,506,687,192.06/624,153.80 - Step 6: Final answer
x = 463,838.70
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Similar ratio
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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.