Finding the Fourth Proportional to 320,941.80, 442,906.64 and 175,753.75
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Solution
The fourth proportional to 320,941.80, 442,906.64 and 175,753.75 is: 242,543.99
Step by Step Solution
- Step 1: Write the proportion equation
320,941.80 : 442,906.64 = 175,753.75 : x - Step 2: Convert to fraction form
320,941.80/442,906.64 = 175,753.75/x - Step 3: Cross multiply
320,941.80x = 442,906.64 × 175,753.75 - Step 4: Simplify right side
320,941.80x = 77,842,502,001.13 - Step 5: Solve for x
x = 77,842,502,001.13/320,941.80 - Step 6: Final answer
x = 242,543.99
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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.