Finding the Fourth Proportional to 298,985.33, 448,223.99 and 139,154.09
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Solution
The fourth proportional to 298,985.33, 448,223.99 and 139,154.09 is: 208,612.90
Step by Step Solution
- Step 1: Write the proportion equation
298,985.33 : 448,223.99 = 139,154.09 : x - Step 2: Convert to fraction form
298,985.33/448,223.99 = 139,154.09/x - Step 3: Cross multiply
298,985.33x = 448,223.99 × 139,154.09 - Step 4: Simplify right side
298,985.33x = 62,372,198,507.73 - Step 5: Solve for x
x = 62,372,198,507.73/298,985.33 - Step 6: Final answer
x = 208,612.90
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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.