Finding the Fourth Proportional to 421,869.99, 632,889.63 and 155,631.90
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Solution
The fourth proportional to 421,869.99, 632,889.63 and 155,631.90 is: 233,479.08
Step by Step Solution
- Step 1: Write the proportion equation
421,869.99 : 632,889.63 = 155,631.90 : x - Step 2: Convert to fraction form
421,869.99/632,889.63 = 155,631.90/x - Step 3: Cross multiply
421,869.99x = 632,889.63 × 155,631.90 - Step 4: Simplify right side
421,869.99x = 98,497,815,607.20 - Step 5: Solve for x
x = 98,497,815,607.20/421,869.99 - Step 6: Final answer
x = 233,479.08
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.