Finding the Fourth Proportional to 320,970.66, 442,934.08 and 177,727.62
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Solution
The fourth proportional to 320,970.66, 442,934.08 and 177,727.62 is: 245,261.11
Step by Step Solution
- Step 1: Write the proportion equation
320,970.66 : 442,934.08 = 177,727.62 : x - Step 2: Convert to fraction form
320,970.66/442,934.08 = 177,727.62/x - Step 3: Cross multiply
320,970.66x = 442,934.08 × 177,727.62 - Step 4: Simplify right side
320,970.66x = 78,721,619,855.29 - Step 5: Solve for x
x = 78,721,619,855.29/320,970.66 - Step 6: Final answer
x = 245,261.11
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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.