Finding the Fourth Proportional to 251,406.21, 346,947.79 and 153,295.20
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Solution
The fourth proportional to 251,406.21, 346,947.79 and 153,295.20 is: 211,551.78
Step by Step Solution
- Step 1: Write the proportion equation
251,406.21 : 346,947.79 = 153,295.20 : x - Step 2: Convert to fraction form
251,406.21/346,947.79 = 153,295.20/x - Step 3: Cross multiply
251,406.21x = 346,947.79 × 153,295.20 - Step 4: Simplify right side
251,406.21x = 53,185,430,091.13 - Step 5: Solve for x
x = 53,185,430,091.13/251,406.21 - Step 6: Final answer
x = 211,551.78
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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.