Finding the Fourth Proportional to 286,893.61, 395,907.67 and 157,824.53
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Solution
The fourth proportional to 286,893.61, 395,907.67 and 157,824.53 is: 217,794.82
Step by Step Solution
- Step 1: Write the proportion equation
286,893.61 : 395,907.67 = 157,824.53 : x - Step 2: Convert to fraction form
286,893.61/395,907.67 = 157,824.53/x - Step 3: Cross multiply
286,893.61x = 395,907.67 × 157,824.53 - Step 4: Simplify right side
286,893.61x = 62,483,942,982.76 - Step 5: Solve for x
x = 62,483,942,982.76/286,893.61 - Step 6: Final answer
x = 217,794.82
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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.