Finding the Fourth Proportional to 371,867.76, 513,174.69 and 202,103.10
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Solution
The fourth proportional to 371,867.76, 513,174.69 and 202,103.10 is: 278,900.75
Step by Step Solution
- Step 1: Write the proportion equation
371,867.76 : 513,174.69 = 202,103.10 : x - Step 2: Convert to fraction form
371,867.76/513,174.69 = 202,103.10/x - Step 3: Cross multiply
371,867.76x = 513,174.69 × 202,103.10 - Step 4: Simplify right side
371,867.76x = 103,714,195,690.54 - Step 5: Solve for x
x = 103,714,195,690.54/371,867.76 - Step 6: Final answer
x = 278,900.75
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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.