Finding the Fourth Proportional to 177,737.86, 243,972.62 and 157,143.60
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Solution
The fourth proportional to 177,737.86, 243,972.62 and 157,143.60 is: 215,703.82
Step by Step Solution
- Step 1: Write the proportion equation
177,737.86 : 243,972.62 = 157,143.60 : x - Step 2: Convert to fraction form
177,737.86/243,972.62 = 157,143.60/x - Step 3: Cross multiply
177,737.86x = 243,972.62 × 157,143.60 - Step 4: Simplify right side
177,737.86x = 38,338,735,808.23 - Step 5: Solve for x
x = 38,338,735,808.23/177,737.86 - Step 6: Final answer
x = 215,703.82
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.