Finding the Fourth Proportional to 280,852.55, 387,575.99 and 153,528.14
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Solution
The fourth proportional to 280,852.55, 387,575.99 and 153,528.14 is: 211,868.55
Step by Step Solution
- Step 1: Write the proportion equation
280,852.55 : 387,575.99 = 153,528.14 : x - Step 2: Convert to fraction form
280,852.55/387,575.99 = 153,528.14/x - Step 3: Cross multiply
280,852.55x = 387,575.99 × 153,528.14 - Step 4: Simplify right side
280,852.55x = 59,503,821,630.39 - Step 5: Solve for x
x = 59,503,821,630.39/280,852.55 - Step 6: Final answer
x = 211,868.55
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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.