Finding the Fourth Proportional to 319,582.80, 441,013.68 and 176,342.94
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Solution
The fourth proportional to 319,582.80, 441,013.68 and 176,342.94 is: 243,347.42
Step by Step Solution
- Step 1: Write the proportion equation
319,582.80 : 441,013.68 = 176,342.94 : x - Step 2: Convert to fraction form
319,582.80/441,013.68 = 176,342.94/x - Step 3: Cross multiply
319,582.80x = 441,013.68 × 176,342.94 - Step 4: Simplify right side
319,582.80x = 77,769,648,911.42 - Step 5: Solve for x
x = 77,769,648,911.42/319,582.80 - Step 6: Final answer
x = 243,347.42
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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.