Finding the Fourth Proportional to 245,447.99, 338,720.24 and 138,017.08
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Solution
The fourth proportional to 245,447.99, 338,720.24 and 138,017.08 is: 190,464.70
Step by Step Solution
- Step 1: Write the proportion equation
245,447.99 : 338,720.24 = 138,017.08 : x - Step 2: Convert to fraction form
245,447.99/338,720.24 = 138,017.08/x - Step 3: Cross multiply
245,447.99x = 338,720.24 × 138,017.08 - Step 4: Simplify right side
245,447.99x = 46,749,177,959.94 - Step 5: Solve for x
x = 46,749,177,959.94/245,447.99 - Step 6: Final answer
x = 190,464.70
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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.