Finding the Fourth Proportional to 242,948.78, 335,269.08 and 135,518.75
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Solution
The fourth proportional to 242,948.78, 335,269.08 and 135,518.75 is: 187,015.74
Step by Step Solution
- Step 1: Write the proportion equation
242,948.78 : 335,269.08 = 135,518.75 : x - Step 2: Convert to fraction form
242,948.78/335,269.08 = 135,518.75/x - Step 3: Cross multiply
242,948.78x = 335,269.08 × 135,518.75 - Step 4: Simplify right side
242,948.78x = 45,435,244,958.90 - Step 5: Solve for x
x = 45,435,244,958.90/242,948.78 - Step 6: Final answer
x = 187,015.74
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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.