Finding the Fourth Proportional to 320,691.84, 442,555.52 and 177,461.68
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Solution
The fourth proportional to 320,691.84, 442,555.52 and 177,461.68 is: 244,897.55
Step by Step Solution
- Step 1: Write the proportion equation
320,691.84 : 442,555.52 = 177,461.68 : x - Step 2: Convert to fraction form
320,691.84/442,555.52 = 177,461.68/x - Step 3: Cross multiply
320,691.84x = 442,555.52 × 177,461.68 - Step 4: Simplify right side
320,691.84x = 78,536,646,072.47 - Step 5: Solve for x
x = 78,536,646,072.47/320,691.84 - Step 6: Final answer
x = 244,897.55
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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.