Finding the Fourth Proportional to 286,490.94, 395,364.09 and 157,437.44
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Solution
The fourth proportional to 286,490.94, 395,364.09 and 157,437.44 is: 217,267.29
Step by Step Solution
- Step 1: Write the proportion equation
286,490.94 : 395,364.09 = 157,437.44 : x - Step 2: Convert to fraction form
286,490.94/395,364.09 = 157,437.44/x - Step 3: Cross multiply
286,490.94x = 395,364.09 × 157,437.44 - Step 4: Simplify right side
286,490.94x = 62,245,109,408.13 - Step 5: Solve for x
x = 62,245,109,408.13/286,490.94 - Step 6: Final answer
x = 217,267.29
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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.