Finding the Fourth Proportional to 319,465.77, 440,862.80 and 176,226.18
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Solution
The fourth proportional to 319,465.77, 440,862.80 and 176,226.18 is: 243,192.15
Step by Step Solution
- Step 1: Write the proportion equation
319,465.77 : 440,862.80 = 176,226.18 : x - Step 2: Convert to fraction form
319,465.77/440,862.80 = 176,226.18/x - Step 3: Cross multiply
319,465.77x = 440,862.80 × 176,226.18 - Step 4: Simplify right side
319,465.77x = 77,691,566,266.97 - Step 5: Solve for x
x = 77,691,566,266.97/319,465.77 - Step 6: Final answer
x = 243,192.15
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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.