Finding the Fourth Proportional to 242,621.99, 334,813.83 and 135,189.74
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Solution
The fourth proportional to 242,621.99, 334,813.83 and 135,189.74 is: 186,559.32
Step by Step Solution
- Step 1: Write the proportion equation
242,621.99 : 334,813.83 = 135,189.74 : x - Step 2: Convert to fraction form
242,621.99/334,813.83 = 135,189.74/x - Step 3: Cross multiply
242,621.99x = 334,813.83 × 135,189.74 - Step 4: Simplify right side
242,621.99x = 45,263,392,952.04 - Step 5: Solve for x
x = 45,263,392,952.04/242,621.99 - Step 6: Final answer
x = 186,559.32
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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.