Finding the Fourth Proportional to 313,998.95, 471,071.93 and 103,636.68
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Solution
The fourth proportional to 313,998.95, 471,071.93 and 103,636.68 is: 155,479.28
Step by Step Solution
- Step 1: Write the proportion equation
313,998.95 : 471,071.93 = 103,636.68 : x - Step 2: Convert to fraction form
313,998.95/471,071.93 = 103,636.68/x - Step 3: Cross multiply
313,998.95x = 471,071.93 × 103,636.68 - Step 4: Simplify right side
313,998.95x = 48,820,330,348.21 - Step 5: Solve for x
x = 48,820,330,348.21/313,998.95 - Step 6: Final answer
x = 155,479.28
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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.