Finding the Fourth Proportional to 508,634.70, 762,952.05 and 153,611.70
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Solution
The fourth proportional to 508,634.70, 762,952.05 and 153,611.70 is: 230,417.55
Step by Step Solution
- Step 1: Write the proportion equation
508,634.70 : 762,952.05 = 153,611.70 : x - Step 2: Convert to fraction form
508,634.70/762,952.05 = 153,611.70/x - Step 3: Cross multiply
508,634.70x = 762,952.05 × 153,611.70 - Step 4: Simplify right side
508,634.70x = 117,198,361,418.99 - Step 5: Solve for x
x = 117,198,361,418.99/508,634.70 - Step 6: Final answer
x = 230,417.55
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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.