Finding the Fourth Proportional to 281,447.04, 388,455.56 and 258,750.09
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Solution
The fourth proportional to 281,447.04, 388,455.56 and 258,750.09 is: 357,129.04
Step by Step Solution
- Step 1: Write the proportion equation
281,447.04 : 388,455.56 = 258,750.09 : x - Step 2: Convert to fraction form
281,447.04/388,455.56 = 258,750.09/x - Step 3: Cross multiply
281,447.04x = 388,455.56 × 258,750.09 - Step 4: Simplify right side
281,447.04x = 100,512,911,111.00 - Step 5: Solve for x
x = 100,512,911,111.00/281,447.04 - Step 6: Final answer
x = 357,129.04
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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.