Finding the Fourth Proportional to 471,499.28, 707,355.84 and 155,955.68
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Solution
The fourth proportional to 471,499.28, 707,355.84 and 155,955.68 is: 233,968.89
Step by Step Solution
- Step 1: Write the proportion equation
471,499.28 : 707,355.84 = 155,955.68 : x - Step 2: Convert to fraction form
471,499.28/707,355.84 = 155,955.68/x - Step 3: Cross multiply
471,499.28x = 707,355.84 × 155,955.68 - Step 4: Simplify right side
471,499.28x = 110,316,161,029.17 - Step 5: Solve for x
x = 110,316,161,029.17/471,499.28 - Step 6: Final answer
x = 233,968.89
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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.