Finding the Fourth Proportional to 298,477.71, 447,417.27 and 138,665.99
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Solution
The fourth proportional to 298,477.71, 447,417.27 and 138,665.99 is: 207,859.94
Step by Step Solution
- Step 1: Write the proportion equation
298,477.71 : 447,417.27 = 138,665.99 : x - Step 2: Convert to fraction form
298,477.71/447,417.27 = 138,665.99/x - Step 3: Cross multiply
298,477.71x = 447,417.27 × 138,665.99 - Step 4: Simplify right side
298,477.71x = 62,041,559,806.19 - Step 5: Solve for x
x = 62,041,559,806.19/298,477.71 - Step 6: Final answer
x = 207,859.94
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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.