Finding the Fourth Proportional to 286,769.28, 429,873.60 and 129,037.44
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Solution
The fourth proportional to 286,769.28, 429,873.60 and 129,037.44 is: 193,430.02
Step by Step Solution
- Step 1: Write the proportion equation
286,769.28 : 429,873.60 = 129,037.44 : x - Step 2: Convert to fraction form
286,769.28/429,873.60 = 129,037.44/x - Step 3: Cross multiply
286,769.28x = 429,873.60 × 129,037.44 - Step 4: Simplify right side
286,769.28x = 55,469,788,867.58 - Step 5: Solve for x
x = 55,469,788,867.58/286,769.28 - Step 6: Final answer
x = 193,430.02
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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.