Finding the Fourth Proportional to 286,764.74, 395,726.29 and 157,702.82
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Solution
The fourth proportional to 286,764.74, 395,726.29 and 157,702.82 is: 217,624.91
Step by Step Solution
- Step 1: Write the proportion equation
286,764.74 : 395,726.29 = 157,702.82 : x - Step 2: Convert to fraction form
286,764.74/395,726.29 = 157,702.82/x - Step 3: Cross multiply
286,764.74x = 395,726.29 × 157,702.82 - Step 4: Simplify right side
286,764.74x = 62,407,150,992.22 - Step 5: Solve for x
x = 62,407,150,992.22/286,764.74 - Step 6: Final answer
x = 217,624.91
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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.