Finding the Fourth Proportional to 461,911.20, 692,866.80 and 212,593.20
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Solution
The fourth proportional to 461,911.20, 692,866.80 and 212,593.20 is: 318,889.80
Step by Step Solution
- Step 1: Write the proportion equation
461,911.20 : 692,866.80 = 212,593.20 : x - Step 2: Convert to fraction form
461,911.20/692,866.80 = 212,593.20/x - Step 3: Cross multiply
461,911.20x = 692,866.80 × 212,593.20 - Step 4: Simplify right side
461,911.20x = 147,298,770,185.76 - Step 5: Solve for x
x = 147,298,770,185.76/461,911.20 - Step 6: Final answer
x = 318,889.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.