Finding the Fourth Proportional to 286,655.93, 395,589.60 and 157,599.99
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Solution
The fourth proportional to 286,655.93, 395,589.60 and 157,599.99 is: 217,490.42
Step by Step Solution
- Step 1: Write the proportion equation
286,655.93 : 395,589.60 = 157,599.99 : x - Step 2: Convert to fraction form
286,655.93/395,589.60 = 157,599.99/x - Step 3: Cross multiply
286,655.93x = 395,589.60 × 157,599.99 - Step 4: Simplify right side
286,655.93x = 62,344,917,004.10 - Step 5: Solve for x
x = 62,344,917,004.10/286,655.93 - Step 6: Final answer
x = 217,490.42
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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.