Finding the Fourth Proportional to 380,642.49, 525,248.45 and 227,649.99
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Solution
The fourth proportional to 380,642.49, 525,248.45 and 227,649.99 is: 314,134.15
Step by Step Solution
- Step 1: Write the proportion equation
380,642.49 : 525,248.45 = 227,649.99 : x - Step 2: Convert to fraction form
380,642.49/525,248.45 = 227,649.99/x - Step 3: Cross multiply
380,642.49x = 525,248.45 × 227,649.99 - Step 4: Simplify right side
380,642.49x = 119,572,806,075.14 - Step 5: Solve for x
x = 119,572,806,075.14/380,642.49 - Step 6: Final answer
x = 314,134.15
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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.