Finding the Fourth Proportional to 317,126.36, 474,756.42 and 211,683.80
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Solution
The fourth proportional to 317,126.36, 474,756.42 and 211,683.80 is: 316,902.84
Step by Step Solution
- Step 1: Write the proportion equation
317,126.36 : 474,756.42 = 211,683.80 : x - Step 2: Convert to fraction form
317,126.36/474,756.42 = 211,683.80/x - Step 3: Cross multiply
317,126.36x = 474,756.42 × 211,683.80 - Step 4: Simplify right side
317,126.36x = 100,498,243,060.00 - Step 5: Solve for x
x = 100,498,243,060.00/317,126.36 - Step 6: Final answer
x = 316,902.84
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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.