Finding the Fourth Proportional to 243,420.80, 335,914.12 and 133,035.08
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Solution
The fourth proportional to 243,420.80, 335,914.12 and 133,035.08 is: 183,584.81
Step by Step Solution
- Step 1: Write the proportion equation
243,420.80 : 335,914.12 = 133,035.08 : x - Step 2: Convert to fraction form
243,420.80/335,914.12 = 133,035.08/x - Step 3: Cross multiply
243,420.80x = 335,914.12 × 133,035.08 - Step 4: Simplify right side
243,420.80x = 44,688,360,314.05 - Step 5: Solve for x
x = 44,688,360,314.05/243,420.80 - Step 6: Final answer
x = 183,584.81
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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.