Finding the Fourth Proportional to 354,442.66, 531,663.99 and 105,122.50
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Solution
The fourth proportional to 354,442.66, 531,663.99 and 105,122.50 is: 157,683.75
Step by Step Solution
- Step 1: Write the proportion equation
354,442.66 : 531,663.99 = 105,122.50 : x - Step 2: Convert to fraction form
354,442.66/531,663.99 = 105,122.50/x - Step 3: Cross multiply
354,442.66x = 531,663.99 × 105,122.50 - Step 4: Simplify right side
354,442.66x = 55,889,847,788.78 - Step 5: Solve for x
x = 55,889,847,788.78/354,442.66 - Step 6: Final answer
x = 157,683.75
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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.