Finding the Fourth Proportional to 243,122.41, 335,686.73 and 157,132.31
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Solution
The fourth proportional to 243,122.41, 335,686.73 and 157,132.31 is: 216,957.50
Step by Step Solution
- Step 1: Write the proportion equation
243,122.41 : 335,686.73 = 157,132.31 : x - Step 2: Convert to fraction form
243,122.41/335,686.73 = 157,132.31/x - Step 3: Cross multiply
243,122.41x = 335,686.73 × 157,132.31 - Step 4: Simplify right side
243,122.41x = 52,747,229,741.02 - Step 5: Solve for x
x = 52,747,229,741.02/243,122.41 - Step 6: Final answer
x = 216,957.50
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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.