Finding the Fourth Proportional to 309,192, 463,788 and 75,720
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Solution
The fourth proportional to 309,192, 463,788 and 75,720 is: 113,580
Step by Step Solution
- Step 1: Write the proportion equation
309,192 : 463,788 = 75,720 : x - Step 2: Convert to fraction form
309,192/463,788 = 75,720/x - Step 3: Cross multiply
309,192x = 463,788 × 75,720 - Step 4: Simplify right side
309,192x = 35,118,027,360 - Step 5: Solve for x
x = 35,118,027,360/309,192 - Step 6: Final answer
x = 113,580
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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.