Finding the Fourth Proportional to 245,782.18, 339,175.65 and 138,351.88
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Solution
The fourth proportional to 245,782.18, 339,175.65 and 138,351.88 is: 190,923.48
Step by Step Solution
- Step 1: Write the proportion equation
245,782.18 : 339,175.65 = 138,351.88 : x - Step 2: Convert to fraction form
245,782.18/339,175.65 = 138,351.88/x - Step 3: Cross multiply
245,782.18x = 339,175.65 × 138,351.88 - Step 4: Simplify right side
245,782.18x = 46,925,588,827.72 - Step 5: Solve for x
x = 46,925,588,827.72/245,782.18 - Step 6: Final answer
x = 190,923.48
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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.