Finding the Fourth Proportional to 286,515.54, 429,624.99 and 128,608.02
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Solution
The fourth proportional to 286,515.54, 429,624.99 and 128,608.02 is: 192,845.45
Step by Step Solution
- Step 1: Write the proportion equation
286,515.54 : 429,624.99 = 128,608.02 : x - Step 2: Convert to fraction form
286,515.54/429,624.99 = 128,608.02/x - Step 3: Cross multiply
286,515.54x = 429,624.99 × 128,608.02 - Step 4: Simplify right side
286,515.54x = 55,253,219,306.42 - Step 5: Solve for x
x = 55,253,219,306.42/286,515.54 - Step 6: Final answer
x = 192,845.45
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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.