Finding the Fourth Proportional to 243,391.23, 335,886.75 and 135,973.08
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Solution
The fourth proportional to 243,391.23, 335,886.75 and 135,973.08 is: 187,646.68
Step by Step Solution
- Step 1: Write the proportion equation
243,391.23 : 335,886.75 = 135,973.08 : x - Step 2: Convert to fraction form
243,391.23/335,886.75 = 135,973.08/x - Step 3: Cross multiply
243,391.23x = 335,886.75 × 135,973.08 - Step 4: Simplify right side
243,391.23x = 45,671,555,928.69 - Step 5: Solve for x
x = 45,671,555,928.69/243,391.23 - Step 6: Final answer
x = 187,646.68
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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.