Finding the Fourth Proportional to 319,545.24, 440,973.84 and 176,305.20
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Solution
The fourth proportional to 319,545.24, 440,973.84 and 176,305.20 is: 243,301.95
Step by Step Solution
- Step 1: Write the proportion equation
319,545.24 : 440,973.84 = 176,305.20 : x - Step 2: Convert to fraction form
319,545.24/440,973.84 = 176,305.20/x - Step 3: Cross multiply
319,545.24x = 440,973.84 × 176,305.20 - Step 4: Simplify right side
319,545.24x = 77,745,981,055.97 - Step 5: Solve for x
x = 77,745,981,055.97/319,545.24 - Step 6: Final answer
x = 243,301.95
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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.