Finding the Fourth Proportional to 280,952.28, 387,605.79 and 173,335.68
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Solution
The fourth proportional to 280,952.28, 387,605.79 and 173,335.68 is: 239,136.39
Step by Step Solution
- Step 1: Write the proportion equation
280,952.28 : 387,605.79 = 173,335.68 : x - Step 2: Convert to fraction form
280,952.28/387,605.79 = 173,335.68/x - Step 3: Cross multiply
280,952.28x = 387,605.79 × 173,335.68 - Step 4: Simplify right side
280,952.28x = 67,185,913,181.59 - Step 5: Solve for x
x = 67,185,913,181.59/280,952.28 - Step 6: Final answer
x = 239,136.39
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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.