Finding the Fourth Proportional to 197,418.34, 272,437.35 and 111,395.55
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Solution
The fourth proportional to 197,418.34, 272,437.35 and 111,395.55 is: 153,725.88
Step by Step Solution
- Step 1: Write the proportion equation
197,418.34 : 272,437.35 = 111,395.55 : x - Step 2: Convert to fraction form
197,418.34/272,437.35 = 111,395.55/x - Step 3: Cross multiply
197,418.34x = 272,437.35 × 111,395.55 - Step 4: Simplify right side
197,418.34x = 30,348,308,443.79 - Step 5: Solve for x
x = 30,348,308,443.79/197,418.34 - Step 6: Final answer
x = 153,725.88
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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.