Finding the Fourth Proportional to 236,407.60, 326,230.50 and 128,976.76
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Solution
The fourth proportional to 236,407.60, 326,230.50 and 128,976.76 is: 177,981.39
Step by Step Solution
- Step 1: Write the proportion equation
236,407.60 : 326,230.50 = 128,976.76 : x - Step 2: Convert to fraction form
236,407.60/326,230.50 = 128,976.76/x - Step 3: Cross multiply
236,407.60x = 326,230.50 × 128,976.76 - Step 4: Simplify right side
236,407.60x = 42,076,152,903.18 - Step 5: Solve for x
x = 42,076,152,903.18/236,407.60 - Step 6: Final answer
x = 177,981.39
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1.5x scale
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.