Finding the Fourth Proportional to 381,310.78, 571,970.25 and 115,073.68
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Solution
The fourth proportional to 381,310.78, 571,970.25 and 115,073.68 is: 172,611.75
Step by Step Solution
- Step 1: Write the proportion equation
381,310.78 : 571,970.25 = 115,073.68 : x - Step 2: Convert to fraction form
381,310.78/571,970.25 = 115,073.68/x - Step 3: Cross multiply
381,310.78x = 571,970.25 × 115,073.68 - Step 4: Simplify right side
381,310.78x = 65,818,721,518.02 - Step 5: Solve for x
x = 65,818,721,518.02/381,310.78 - Step 6: Final answer
x = 172,611.75
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.