Finding the Fourth Proportional to 372,241.99, 513,785.20 and 211,191.31
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Solution
The fourth proportional to 372,241.99, 513,785.20 and 211,191.31 is: 291,495.78
Step by Step Solution
- Step 1: Write the proportion equation
372,241.99 : 513,785.20 = 211,191.31 : x - Step 2: Convert to fraction form
372,241.99/513,785.20 = 211,191.31/x - Step 3: Cross multiply
372,241.99x = 513,785.20 × 211,191.31 - Step 4: Simplify right side
372,241.99x = 108,506,966,877.69 - Step 5: Solve for x
x = 108,506,966,877.69/372,241.99 - Step 6: Final answer
x = 291,495.78
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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.