Finding the Fourth Proportional to 369,078.12, 509,374.17 and 207,971.55
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Solution
The fourth proportional to 369,078.12, 509,374.17 and 207,971.55 is: 287,026.86
Step by Step Solution
- Step 1: Write the proportion equation
369,078.12 : 509,374.17 = 207,971.55 : x - Step 2: Convert to fraction form
369,078.12/509,374.17 = 207,971.55/x - Step 3: Cross multiply
369,078.12x = 509,374.17 × 207,971.55 - Step 4: Simplify right side
369,078.12x = 105,935,335,664.86 - Step 5: Solve for x
x = 105,935,335,664.86/369,078.12 - Step 6: Final answer
x = 287,026.86
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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.