Finding the Fourth Proportional to 278,283.14, 417,425.70 and 67,921.08
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Solution
The fourth proportional to 278,283.14, 417,425.70 and 67,921.08 is: 101,881.86
Step by Step Solution
- Step 1: Write the proportion equation
278,283.14 : 417,425.70 = 67,921.08 : x - Step 2: Convert to fraction form
278,283.14/417,425.70 = 67,921.08/x - Step 3: Cross multiply
278,283.14x = 417,425.70 × 67,921.08 - Step 4: Simplify right side
278,283.14x = 28,352,005,401.13 - Step 5: Solve for x
x = 28,352,005,401.13/278,283.14 - Step 6: Final answer
x = 101,881.86
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.