Finding the Fourth Proportional to 245,963.20, 368,944.08 and 77,497.60
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Solution
The fourth proportional to 245,963.20, 368,944.08 and 77,497.60 is: 116,246.17
Step by Step Solution
- Step 1: Write the proportion equation
245,963.20 : 368,944.08 = 77,497.60 : x - Step 2: Convert to fraction form
245,963.20/368,944.08 = 77,497.60/x - Step 3: Cross multiply
245,963.20x = 368,944.08 × 77,497.60 - Step 4: Simplify right side
245,963.20x = 28,592,280,734.21 - Step 5: Solve for x
x = 28,592,280,734.21/245,963.20 - Step 6: Final answer
x = 116,246.17
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1.5x scale
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.