Finding the Fourth Proportional to 511,343.16, 767,014.80 and 156,357.19
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Solution
The fourth proportional to 511,343.16, 767,014.80 and 156,357.19 is: 234,535.80
Step by Step Solution
- Step 1: Write the proportion equation
511,343.16 : 767,014.80 = 156,357.19 : x - Step 2: Convert to fraction form
511,343.16/767,014.80 = 156,357.19/x - Step 3: Cross multiply
511,343.16x = 767,014.80 × 156,357.19 - Step 4: Simplify right side
511,343.16x = 119,928,278,816.41 - Step 5: Solve for x
x = 119,928,278,816.41/511,343.16 - Step 6: Final answer
x = 234,535.80
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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.