Finding the Fourth Proportional to 245,305.30, 338,510.18 and 143,340.07
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Solution
The fourth proportional to 245,305.30, 338,510.18 and 143,340.07 is: 197,802.79
Step by Step Solution
- Step 1: Write the proportion equation
245,305.30 : 338,510.18 = 143,340.07 : x - Step 2: Convert to fraction form
245,305.30/338,510.18 = 143,340.07/x - Step 3: Cross multiply
245,305.30x = 338,510.18 × 143,340.07 - Step 4: Simplify right side
245,305.30x = 48,522,072,408.99 - Step 5: Solve for x
x = 48,522,072,408.99/245,305.30 - Step 6: Final answer
x = 197,802.79
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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.