Finding the Fourth Proportional to 486,688.96, 729,975.93 and 149,728.96
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Solution
The fourth proportional to 486,688.96, 729,975.93 and 149,728.96 is: 224,575.75
Step by Step Solution
- Step 1: Write the proportion equation
486,688.96 : 729,975.93 = 149,728.96 : x - Step 2: Convert to fraction form
486,688.96/729,975.93 = 149,728.96/x - Step 3: Cross multiply
486,688.96x = 729,975.93 × 149,728.96 - Step 4: Simplify right side
486,688.96x = 109,298,536,823.93 - Step 5: Solve for x
x = 109,298,536,823.93/486,688.96 - Step 6: Final answer
x = 224,575.75
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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.