Finding the Fourth Proportional to 286,531.16, 395,395.62 and 159,202.40
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Solution
The fourth proportional to 286,531.16, 395,395.62 and 159,202.40 is: 219,689.65
Step by Step Solution
- Step 1: Write the proportion equation
286,531.16 : 395,395.62 = 159,202.40 : x - Step 2: Convert to fraction form
286,531.16/395,395.62 = 159,202.40/x - Step 3: Cross multiply
286,531.16x = 395,395.62 × 159,202.40 - Step 4: Simplify right side
286,531.16x = 62,947,929,676.51 - Step 5: Solve for x
x = 62,947,929,676.51/286,531.16 - Step 6: Final answer
x = 219,689.65
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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.