Finding the Fourth Proportional to 296,894.36, 445,494.66 and 139,138.84
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Solution
The fourth proportional to 296,894.36, 445,494.66 and 139,138.84 is: 208,780.02
Step by Step Solution
- Step 1: Write the proportion equation
296,894.36 : 445,494.66 = 139,138.84 : x - Step 2: Convert to fraction form
296,894.36/445,494.66 = 139,138.84/x - Step 3: Cross multiply
296,894.36x = 445,494.66 × 139,138.84 - Step 4: Simplify right side
296,894.36x = 61,985,610,218.59 - Step 5: Solve for x
x = 61,985,610,218.59/296,894.36 - Step 6: Final answer
x = 208,780.02
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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.