Finding the Fourth Proportional to 281,203.02, 388,060.20 and 153,878.63
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Solution
The fourth proportional to 281,203.02, 388,060.20 and 153,878.63 is: 212,352.52
Step by Step Solution
- Step 1: Write the proportion equation
281,203.02 : 388,060.20 = 153,878.63 : x - Step 2: Convert to fraction form
281,203.02/388,060.20 = 153,878.63/x - Step 3: Cross multiply
281,203.02x = 388,060.20 × 153,878.63 - Step 4: Simplify right side
281,203.02x = 59,714,169,993.23 - Step 5: Solve for x
x = 59,714,169,993.23/281,203.02 - Step 6: Final answer
x = 212,352.52
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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.