Finding the Fourth Proportional to 298,948.24, 448,420.74 and 128,144.80
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Solution
The fourth proportional to 298,948.24, 448,420.74 and 128,144.80 is: 192,216.51
Step by Step Solution
- Step 1: Write the proportion equation
298,948.24 : 448,420.74 = 128,144.80 : x - Step 2: Convert to fraction form
298,948.24/448,420.74 = 128,144.80/x - Step 3: Cross multiply
298,948.24x = 448,420.74 × 128,144.80 - Step 4: Simplify right side
298,948.24x = 57,462,786,043.15 - Step 5: Solve for x
x = 57,462,786,043.15/298,948.24 - Step 6: Final answer
x = 192,216.51
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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.