Finding the Fourth Proportional to 356,176.99, 534,121.93 and 128,407.76
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Solution
The fourth proportional to 356,176.99, 534,121.93 and 128,407.76 is: 192,559.89
Step by Step Solution
- Step 1: Write the proportion equation
356,176.99 : 534,121.93 = 128,407.76 : x - Step 2: Convert to fraction form
356,176.99/534,121.93 = 128,407.76/x - Step 3: Cross multiply
356,176.99x = 534,121.93 × 128,407.76 - Step 4: Simplify right side
356,176.99x = 68,585,400,598.18 - Step 5: Solve for x
x = 68,585,400,598.18/356,176.99 - Step 6: Final answer
x = 192,559.89
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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.