Finding the Fourth Proportional to 286,937.92, 430,408.96 and 99,948.80
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Solution
The fourth proportional to 286,937.92, 430,408.96 and 99,948.80 is: 149,923.92
Step by Step Solution
- Step 1: Write the proportion equation
286,937.92 : 430,408.96 = 99,948.80 : x - Step 2: Convert to fraction form
286,937.92/430,408.96 = 99,948.80/x - Step 3: Cross multiply
286,937.92x = 430,408.96 × 99,948.80 - Step 4: Simplify right side
286,937.92x = 43,018,859,061.25 - Step 5: Solve for x
x = 43,018,859,061.25/286,937.92 - Step 6: Final answer
x = 149,923.92
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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.