Finding the Fourth Proportional to 279,949.06, 386,329.69 and 159,090.58
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Solution
The fourth proportional to 279,949.06, 386,329.69 and 159,090.58 is: 219,544.99
Step by Step Solution
- Step 1: Write the proportion equation
279,949.06 : 386,329.69 = 159,090.58 : x - Step 2: Convert to fraction form
279,949.06/386,329.69 = 159,090.58/x - Step 3: Cross multiply
279,949.06x = 386,329.69 × 159,090.58 - Step 4: Simplify right side
279,949.06x = 61,461,411,726.22 - Step 5: Solve for x
x = 61,461,411,726.22/279,949.06 - Step 6: Final answer
x = 219,544.99
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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.