Finding the Fourth Proportional to 355,358.97, 490,248.86 and 247,991.31
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Solution
The fourth proportional to 355,358.97, 490,248.86 and 247,991.31 is: 342,125.75
Step by Step Solution
- Step 1: Write the proportion equation
355,358.97 : 490,248.86 = 247,991.31 : x - Step 2: Convert to fraction form
355,358.97/490,248.86 = 247,991.31/x - Step 3: Cross multiply
355,358.97x = 490,248.86 × 247,991.31 - Step 4: Simplify right side
355,358.97x = 121,577,455,777.45 - Step 5: Solve for x
x = 121,577,455,777.45/355,358.97 - Step 6: Final answer
x = 342,125.75
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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.