Finding the Fourth Proportional to 185,615.68, 256,149.84 and 100,732.80
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Solution
The fourth proportional to 185,615.68, 256,149.84 and 100,732.80 is: 139,011.37
Step by Step Solution
- Step 1: Write the proportion equation
185,615.68 : 256,149.84 = 100,732.80 : x - Step 2: Convert to fraction form
185,615.68/256,149.84 = 100,732.80/x - Step 3: Cross multiply
185,615.68x = 256,149.84 × 100,732.80 - Step 4: Simplify right side
185,615.68x = 25,802,690,602.75 - Step 5: Solve for x
x = 25,802,690,602.75/185,615.68 - Step 6: Final answer
x = 139,011.37
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.