Finding the Fourth Proportional to 319,548.42, 440,990.16 and 176,317.74
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Solution
The fourth proportional to 319,548.42, 440,990.16 and 176,317.74 is: 243,325.84
Step by Step Solution
- Step 1: Write the proportion equation
319,548.42 : 440,990.16 = 176,317.74 : x - Step 2: Convert to fraction form
319,548.42/440,990.16 = 176,317.74/x - Step 3: Cross multiply
319,548.42x = 440,990.16 × 176,317.74 - Step 4: Simplify right side
319,548.42x = 77,754,388,373.44 - Step 5: Solve for x
x = 77,754,388,373.44/319,548.42 - Step 6: Final answer
x = 243,325.84
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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.