Finding the Fourth Proportional to 150,310.08, 207,210.96 and 121,966.56
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Solution
The fourth proportional to 150,310.08, 207,210.96 and 121,966.56 is: 168,137.81
Step by Step Solution
- Step 1: Write the proportion equation
150,310.08 : 207,210.96 = 121,966.56 : x - Step 2: Convert to fraction form
150,310.08/207,210.96 = 121,966.56/x - Step 3: Cross multiply
150,310.08x = 207,210.96 × 121,966.56 - Step 4: Simplify right side
150,310.08x = 25,272,807,985.50 - Step 5: Solve for x
x = 25,272,807,985.50/150,310.08 - Step 6: Final answer
x = 168,137.81
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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.