Finding the Fourth Proportional to 380,811.84, 571,266.36 and 127,983.84
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Solution
The fourth proportional to 380,811.84, 571,266.36 and 127,983.84 is: 191,992.09
Step by Step Solution
- Step 1: Write the proportion equation
380,811.84 : 571,266.36 = 127,983.84 : x - Step 2: Convert to fraction form
380,811.84/571,266.36 = 127,983.84/x - Step 3: Cross multiply
380,811.84x = 571,266.36 × 127,983.84 - Step 4: Simplify right side
380,811.84x = 73,112,862,415.62 - Step 5: Solve for x
x = 73,112,862,415.62/380,811.84 - Step 6: Final answer
x = 191,992.09
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1.5x scale
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.