Finding the Fourth Proportional to 280,241.51, 386,742.62 and 152,924.09
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Solution
The fourth proportional to 280,241.51, 386,742.62 and 152,924.09 is: 211,040.34
Step by Step Solution
- Step 1: Write the proportion equation
280,241.51 : 386,742.62 = 152,924.09 : x - Step 2: Convert to fraction form
280,241.51/386,742.62 = 152,924.09/x - Step 3: Cross multiply
280,241.51x = 386,742.62 × 152,924.09 - Step 4: Simplify right side
280,241.51x = 59,142,262,463.10 - Step 5: Solve for x
x = 59,142,262,463.10/280,241.51 - Step 6: Final answer
x = 211,040.34
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1.5x scale
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.