Finding the Fourth Proportional to 319,433.08, 440,809.93 and 176,190.05
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Solution
The fourth proportional to 319,433.08, 440,809.93 and 176,190.05 is: 243,138.01
Step by Step Solution
- Step 1: Write the proportion equation
319,433.08 : 440,809.93 = 176,190.05 : x - Step 2: Convert to fraction form
319,433.08/440,809.93 = 176,190.05/x - Step 3: Cross multiply
319,433.08x = 440,809.93 × 176,190.05 - Step 4: Simplify right side
319,433.08x = 77,666,323,607.20 - Step 5: Solve for x
x = 77,666,323,607.20/319,433.08 - Step 6: Final answer
x = 243,138.01
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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.