Finding the Fourth Proportional to 351,451.80, 527,177.70 and 257,448.60
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Solution
The fourth proportional to 351,451.80, 527,177.70 and 257,448.60 is: 386,172.90
Step by Step Solution
- Step 1: Write the proportion equation
351,451.80 : 527,177.70 = 257,448.60 : x - Step 2: Convert to fraction form
351,451.80/527,177.70 = 257,448.60/x - Step 3: Cross multiply
351,451.80x = 527,177.70 × 257,448.60 - Step 4: Simplify right side
351,451.80x = 135,721,160,816.22 - Step 5: Solve for x
x = 135,721,160,816.22/351,451.80 - Step 6: Final answer
x = 386,172.90
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1.5x scale
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.