Finding the Fourth Proportional to 216,442.56, 298,497.35 and 135,877.60
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Solution
The fourth proportional to 216,442.56, 298,497.35 and 135,877.60 is: 187,389.69
Step by Step Solution
- Step 1: Write the proportion equation
216,442.56 : 298,497.35 = 135,877.60 : x - Step 2: Convert to fraction form
216,442.56/298,497.35 = 135,877.60/x - Step 3: Cross multiply
216,442.56x = 298,497.35 × 135,877.60 - Step 4: Simplify right side
216,442.56x = 40,559,104,237.18 - Step 5: Solve for x
x = 40,559,104,237.18/216,442.56 - Step 6: Final answer
x = 187,389.69
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1.5x scale
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.