Finding the Fourth Proportional to 319,510.23, 440,921.66 and 176,276.31
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Solution
The fourth proportional to 319,510.23, 440,921.66 and 176,276.31 is: 243,259.95
Step by Step Solution
- Step 1: Write the proportion equation
319,510.23 : 440,921.66 = 176,276.31 : x - Step 2: Convert to fraction form
319,510.23/440,921.66 = 176,276.31/x - Step 3: Cross multiply
319,510.23x = 440,921.66 × 176,276.31 - Step 4: Simplify right side
319,510.23x = 77,724,042,342.49 - Step 5: Solve for x
x = 77,724,042,342.49/319,510.23 - Step 6: Final answer
x = 243,259.95
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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.