Finding the Fourth Proportional to 163,929.60, 246,124.80 and 128,908.80
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Solution
The fourth proportional to 163,929.60, 246,124.80 and 128,908.80 is: 193,544.38
Step by Step Solution
- Step 1: Write the proportion equation
163,929.60 : 246,124.80 = 128,908.80 : x - Step 2: Convert to fraction form
163,929.60/246,124.80 = 128,908.80/x - Step 3: Cross multiply
163,929.60x = 246,124.80 × 128,908.80 - Step 4: Simplify right side
163,929.60x = 31,727,652,618.24 - Step 5: Solve for x
x = 31,727,652,618.24/163,929.60 - Step 6: Final answer
x = 193,544.38
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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.