Finding the Fourth Proportional to 310,918.26, 429,067.20 and 176,782.26
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Solution
The fourth proportional to 310,918.26, 429,067.20 and 176,782.26 is: 243,959.52
Step by Step Solution
- Step 1: Write the proportion equation
310,918.26 : 429,067.20 = 176,782.26 : x - Step 2: Convert to fraction form
310,918.26/429,067.20 = 176,782.26/x - Step 3: Cross multiply
310,918.26x = 429,067.20 × 176,782.26 - Step 4: Simplify right side
310,918.26x = 75,851,469,307.87 - Step 5: Solve for x
x = 75,851,469,307.87/310,918.26 - Step 6: Final answer
x = 243,959.52
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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.