Finding the Fourth Proportional to 419,238.37, 628,663.56 and 134,875.99
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Solution
The fourth proportional to 419,238.37, 628,663.56 and 134,875.99 is: 202,251.57
Step by Step Solution
- Step 1: Write the proportion equation
419,238.37 : 628,663.56 = 134,875.99 : x - Step 2: Convert to fraction form
419,238.37/628,663.56 = 134,875.99/x - Step 3: Cross multiply
419,238.37x = 628,663.56 × 134,875.99 - Step 4: Simplify right side
419,238.37x = 84,791,620,031.92 - Step 5: Solve for x
x = 84,791,620,031.92/419,238.37 - Step 6: Final answer
x = 202,251.57
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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.