Finding the Fourth Proportional to 427,266.41, 640,702.26 and 157,326.75
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Solution
The fourth proportional to 427,266.41, 640,702.26 and 157,326.75 is: 235,917.46
Step by Step Solution
- Step 1: Write the proportion equation
427,266.41 : 640,702.26 = 157,326.75 : x - Step 2: Convert to fraction form
427,266.41/640,702.26 = 157,326.75/x - Step 3: Cross multiply
427,266.41x = 640,702.26 × 157,326.75 - Step 4: Simplify right side
427,266.41x = 100,799,604,283.46 - Step 5: Solve for x
x = 100,799,604,283.46/427,266.41 - Step 6: Final answer
x = 235,917.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.