Finding the Fourth Proportional to 512,536.20, 768,877.67 and 157,580.02
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Solution
The fourth proportional to 512,536.20, 768,877.67 and 157,580.02 is: 236,392.59
Step by Step Solution
- Step 1: Write the proportion equation
512,536.20 : 768,877.67 = 157,580.02 : x - Step 2: Convert to fraction form
512,536.20/768,877.67 = 157,580.02/x - Step 3: Cross multiply
512,536.20x = 768,877.67 × 157,580.02 - Step 4: Simplify right side
512,536.20x = 121,159,757,828.25 - Step 5: Solve for x
x = 121,159,757,828.25/512,536.20 - Step 6: Final answer
x = 236,392.59
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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.