Finding the Fourth Proportional to 279,581.04, 385,852.68 and 172,129.68
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Solution
The fourth proportional to 279,581.04, 385,852.68 and 172,129.68 is: 237,557.95
Step by Step Solution
- Step 1: Write the proportion equation
279,581.04 : 385,852.68 = 172,129.68 : x - Step 2: Convert to fraction form
279,581.04/385,852.68 = 172,129.68/x - Step 3: Cross multiply
279,581.04x = 385,852.68 × 172,129.68 - Step 4: Simplify right side
279,581.04x = 66,416,698,335.54 - Step 5: Solve for x
x = 66,416,698,335.54/279,581.04 - Step 6: Final answer
x = 237,557.95
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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.