Finding the Fourth Proportional to 172,276.80, 257,977.80 and 164,403.60
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Solution
The fourth proportional to 172,276.80, 257,977.80 and 164,403.60 is: 246,187.99
Step by Step Solution
- Step 1: Write the proportion equation
172,276.80 : 257,977.80 = 164,403.60 : x - Step 2: Convert to fraction form
172,276.80/257,977.80 = 164,403.60/x - Step 3: Cross multiply
172,276.80x = 257,977.80 × 164,403.60 - Step 4: Simplify right side
172,276.80x = 42,412,479,040.08 - Step 5: Solve for x
x = 42,412,479,040.08/172,276.80 - Step 6: Final answer
x = 246,187.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.