Finding the Fourth Proportional to 282,273.75, 389,542.34 and 153,214.79
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Solution
The fourth proportional to 282,273.75, 389,542.34 and 153,214.79 is: 211,438.88
Step by Step Solution
- Step 1: Write the proportion equation
282,273.75 : 389,542.34 = 153,214.79 : x - Step 2: Convert to fraction form
282,273.75/389,542.34 = 153,214.79/x - Step 3: Cross multiply
282,273.75x = 389,542.34 × 153,214.79 - Step 4: Simplify right side
282,273.75x = 59,683,646,254.53 - Step 5: Solve for x
x = 59,683,646,254.53/282,273.75 - Step 6: Final answer
x = 211,438.88
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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.