Finding the Fourth Proportional to 240,204.81, 331,515.57 and 138,228.18
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Solution
The fourth proportional to 240,204.81, 331,515.57 and 138,228.18 is: 190,773.84
Step by Step Solution
- Step 1: Write the proportion equation
240,204.81 : 331,515.57 = 138,228.18 : x - Step 2: Convert to fraction form
240,204.81/331,515.57 = 138,228.18/x - Step 3: Cross multiply
240,204.81x = 331,515.57 × 138,228.18 - Step 4: Simplify right side
240,204.81x = 45,824,793,882.76 - Step 5: Solve for x
x = 45,824,793,882.76/240,204.81 - Step 6: Final answer
x = 190,773.84
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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.