Finding the Fourth Proportional to 268,829.99, 403,314.16 and 79,282.70
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Solution
The fourth proportional to 268,829.99, 403,314.16 and 79,282.70 is: 118,944.45
Step by Step Solution
- Step 1: Write the proportion equation
268,829.99 : 403,314.16 = 79,282.70 : x - Step 2: Convert to fraction form
268,829.99/403,314.16 = 79,282.70/x - Step 3: Cross multiply
268,829.99x = 403,314.16 × 79,282.70 - Step 4: Simplify right side
268,829.99x = 31,975,835,222.32 - Step 5: Solve for x
x = 31,975,835,222.32/268,829.99 - Step 6: Final answer
x = 118,944.45
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1.5x scale
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.