Finding the Fourth Proportional to 257,515.63, 386,256.53 and 88,996.75
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Solution
The fourth proportional to 257,515.63, 386,256.53 and 88,996.75 is: 133,489.28
Step by Step Solution
- Step 1: Write the proportion equation
257,515.63 : 386,256.53 = 88,996.75 : x - Step 2: Convert to fraction form
257,515.63/386,256.53 = 88,996.75/x - Step 3: Cross multiply
257,515.63x = 386,256.53 × 88,996.75 - Step 4: Simplify right side
257,515.63x = 34,375,575,391.29 - Step 5: Solve for x
x = 34,375,575,391.29/257,515.63 - Step 6: Final answer
x = 133,489.28
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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.