Finding the Fourth Proportional to 251,918.26, 347,621.49 and 155,106.76
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Solution
The fourth proportional to 251,918.26, 347,621.49 and 155,106.76 is: 214,031.50
Step by Step Solution
- Step 1: Write the proportion equation
251,918.26 : 347,621.49 = 155,106.76 : x - Step 2: Convert to fraction form
251,918.26/347,621.49 = 155,106.76/x - Step 3: Cross multiply
251,918.26x = 347,621.49 × 155,106.76 - Step 4: Simplify right side
251,918.26x = 53,918,441,282.17 - Step 5: Solve for x
x = 53,918,441,282.17/251,918.26 - Step 6: Final answer
x = 214,031.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.