Finding the Fourth Proportional to 279,903.36, 386,252.67 and 159,028.68
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Solution
The fourth proportional to 279,903.36, 386,252.67 and 159,028.68 is: 219,451.64
Step by Step Solution
- Step 1: Write the proportion equation
279,903.36 : 386,252.67 = 159,028.68 : x - Step 2: Convert to fraction form
279,903.36/386,252.67 = 159,028.68/x - Step 3: Cross multiply
279,903.36x = 386,252.67 × 159,028.68 - Step 4: Simplify right side
279,903.36x = 61,425,252,256.58 - Step 5: Solve for x
x = 61,425,252,256.58/279,903.36 - Step 6: Final answer
x = 219,451.64
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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.