Finding the Fourth Proportional to 279,512.36, 385,781.68 and 177,656.48
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Solution
The fourth proportional to 279,512.36, 385,781.68 and 177,656.48 is: 245,200.66
Step by Step Solution
- Step 1: Write the proportion equation
279,512.36 : 385,781.68 = 177,656.48 : x - Step 2: Convert to fraction form
279,512.36/385,781.68 = 177,656.48/x - Step 3: Cross multiply
279,512.36x = 385,781.68 × 177,656.48 - Step 4: Simplify right side
279,512.36x = 68,536,615,317.29 - Step 5: Solve for x
x = 68,536,615,317.29/279,512.36 - Step 6: Final answer
x = 245,200.66
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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.