Finding the Fourth Proportional to 138,248.63, 207,372.74 and 43,487.13
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Solution
The fourth proportional to 138,248.63, 207,372.74 and 43,487.13 is: 65,230.63
Step by Step Solution
- Step 1: Write the proportion equation
138,248.63 : 207,372.74 = 43,487.13 : x - Step 2: Convert to fraction form
138,248.63/207,372.74 = 43,487.13/x - Step 3: Cross multiply
138,248.63x = 207,372.74 × 43,487.13 - Step 4: Simplify right side
138,248.63x = 9,018,045,085.40 - Step 5: Solve for x
x = 9,018,045,085.40/138,248.63 - Step 6: Final answer
x = 65,230.63
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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.