Finding the Fourth Proportional to 509,975.23, 765,129.27 and 243,756.49
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Solution
The fourth proportional to 509,975.23, 765,129.27 and 243,756.49 is: 365,714.28
Step by Step Solution
- Step 1: Write the proportion equation
509,975.23 : 765,129.27 = 243,756.49 : x - Step 2: Convert to fraction form
509,975.23/765,129.27 = 243,756.49/x - Step 3: Cross multiply
509,975.23x = 765,129.27 × 243,756.49 - Step 4: Simplify right side
509,975.23x = 186,505,225,251.46 - Step 5: Solve for x
x = 186,505,225,251.46/509,975.23 - Step 6: Final answer
x = 365,714.28
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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.