Finding the Fourth Proportional to 319,353.64, 440,699.34 and 176,111.08
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Solution
The fourth proportional to 319,353.64, 440,699.34 and 176,111.08 is: 243,028.50
Step by Step Solution
- Step 1: Write the proportion equation
319,353.64 : 440,699.34 = 176,111.08 : x - Step 2: Convert to fraction form
319,353.64/440,699.34 = 176,111.08/x - Step 3: Cross multiply
319,353.64x = 440,699.34 × 176,111.08 - Step 4: Simplify right side
319,353.64x = 77,612,036,722.69 - Step 5: Solve for x
x = 77,612,036,722.69/319,353.64 - Step 6: Final answer
x = 243,028.50
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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.