Finding the Fourth Proportional to 216,729.13, 299,117.93 and 124,830.75
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Solution
The fourth proportional to 216,729.13, 299,117.93 and 124,830.75 is: 172,284.71
Step by Step Solution
- Step 1: Write the proportion equation
216,729.13 : 299,117.93 = 124,830.75 : x - Step 2: Convert to fraction form
216,729.13/299,117.93 = 124,830.75/x - Step 3: Cross multiply
216,729.13x = 299,117.93 × 124,830.75 - Step 4: Simplify right side
216,729.13x = 37,339,115,540.35 - Step 5: Solve for x
x = 37,339,115,540.35/216,729.13 - Step 6: Final answer
x = 172,284.71
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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.