Finding the Fourth Proportional to 508,780.70, 763,171.05 and 153,757.70
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Solution
The fourth proportional to 508,780.70, 763,171.05 and 153,757.70 is: 230,636.55
Step by Step Solution
- Step 1: Write the proportion equation
508,780.70 : 763,171.05 = 153,757.70 : x - Step 2: Convert to fraction form
508,780.70/763,171.05 = 153,757.70/x - Step 3: Cross multiply
508,780.70x = 763,171.05 × 153,757.70 - Step 4: Simplify right side
508,780.70x = 117,343,425,354.59 - Step 5: Solve for x
x = 117,343,425,354.59/508,780.70 - Step 6: Final answer
x = 230,636.55
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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.