Finding the Fourth Proportional to 319,154.78, 440,425.80 and 175,911.68
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Solution
The fourth proportional to 319,154.78, 440,425.80 and 175,911.68 is: 242,753.82
Step by Step Solution
- Step 1: Write the proportion equation
319,154.78 : 440,425.80 = 175,911.68 : x - Step 2: Convert to fraction form
319,154.78/440,425.80 = 175,911.68/x - Step 3: Cross multiply
319,154.78x = 440,425.80 × 175,911.68 - Step 4: Simplify right side
319,154.78x = 77,476,042,393.34 - Step 5: Solve for x
x = 77,476,042,393.34/319,154.78 - Step 6: Final answer
x = 242,753.82
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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.