Finding the Fourth Proportional to 284,638.58, 392,777.61 and 157,314.14
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Solution
The fourth proportional to 284,638.58, 392,777.61 and 157,314.14 is: 217,080.45
Step by Step Solution
- Step 1: Write the proportion equation
284,638.58 : 392,777.61 = 157,314.14 : x - Step 2: Convert to fraction form
284,638.58/392,777.61 = 157,314.14/x - Step 3: Cross multiply
284,638.58x = 392,777.61 × 157,314.14 - Step 4: Simplify right side
284,638.58x = 61,789,471,928.41 - Step 5: Solve for x
x = 61,789,471,928.41/284,638.58 - Step 6: Final answer
x = 217,080.45
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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.