Finding the Fourth Proportional to 485,454.24, 728,129.52 and 169,917.12
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Solution
The fourth proportional to 485,454.24, 728,129.52 and 169,917.12 is: 254,857.54
Step by Step Solution
- Step 1: Write the proportion equation
485,454.24 : 728,129.52 = 169,917.12 : x - Step 2: Convert to fraction form
485,454.24/728,129.52 = 169,917.12/x - Step 3: Cross multiply
485,454.24x = 728,129.52 × 169,917.12 - Step 4: Simplify right side
485,454.24x = 123,721,671,025.38 - Step 5: Solve for x
x = 123,721,671,025.38/485,454.24 - Step 6: Final answer
x = 254,857.54
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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.