Finding the Fourth Proportional to 319,558.18, 440,989.94 and 176,318.22
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Solution
The fourth proportional to 319,558.18, 440,989.94 and 176,318.22 is: 243,318.95
Step by Step Solution
- Step 1: Write the proportion equation
319,558.18 : 440,989.94 = 176,318.22 : x - Step 2: Convert to fraction form
319,558.18/440,989.94 = 176,318.22/x - Step 3: Cross multiply
319,558.18x = 440,989.94 × 176,318.22 - Step 4: Simplify right side
319,558.18x = 77,754,561,258.71 - Step 5: Solve for x
x = 77,754,561,258.71/319,558.18 - Step 6: Final answer
x = 243,318.95
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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.