Finding the Fourth Proportional to 319,419.06, 440,800.65 and 176,175.42
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Solution
The fourth proportional to 319,419.06, 440,800.65 and 176,175.42 is: 243,123.37
Step by Step Solution
- Step 1: Write the proportion equation
319,419.06 : 440,800.65 = 176,175.42 : x - Step 2: Convert to fraction form
319,419.06/440,800.65 = 176,175.42/x - Step 3: Cross multiply
319,419.06x = 440,800.65 × 176,175.42 - Step 4: Simplify right side
319,419.06x = 77,658,239,650.02 - Step 5: Solve for x
x = 77,658,239,650.02/319,419.06 - Step 6: Final answer
x = 243,123.37
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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.