Finding the Fourth Proportional to 319,565.12, 440,998.70 and 176,324.45
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Solution
The fourth proportional to 319,565.12, 440,998.70 and 176,324.45 is: 243,327.09
Step by Step Solution
- Step 1: Write the proportion equation
319,565.12 : 440,998.70 = 176,324.45 : x - Step 2: Convert to fraction form
319,565.12/440,998.70 = 176,324.45/x - Step 3: Cross multiply
319,565.12x = 440,998.70 × 176,324.45 - Step 4: Simplify right side
319,565.12x = 77,758,850,141.60 - Step 5: Solve for x
x = 77,758,850,141.60/319,565.12 - Step 6: Final answer
x = 243,327.09
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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.