Finding the Fourth Proportional to 355,398.21, 490,132.08 and 294,873.03
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Solution
The fourth proportional to 355,398.21, 490,132.08 and 294,873.03 is: 406,661.39
Step by Step Solution
- Step 1: Write the proportion equation
355,398.21 : 490,132.08 = 294,873.03 : x - Step 2: Convert to fraction form
355,398.21/490,132.08 = 294,873.03/x - Step 3: Cross multiply
355,398.21x = 490,132.08 × 294,873.03 - Step 4: Simplify right side
355,398.21x = 144,526,731,529.80 - Step 5: Solve for x
x = 144,526,731,529.80/355,398.21 - Step 6: Final answer
x = 406,661.39
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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.