Finding the Fourth Proportional to 345,121.68, 517,256.28 and 145,372.08
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Solution
The fourth proportional to 345,121.68, 517,256.28 and 145,372.08 is: 217,878.58
Step by Step Solution
- Step 1: Write the proportion equation
345,121.68 : 517,256.28 = 145,372.08 : x - Step 2: Convert to fraction form
345,121.68/517,256.28 = 145,372.08/x - Step 3: Cross multiply
345,121.68x = 517,256.28 × 145,372.08 - Step 4: Simplify right side
345,121.68x = 75,194,621,316.66 - Step 5: Solve for x
x = 75,194,621,316.66/345,121.68 - Step 6: Final answer
x = 217,878.58
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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.