Finding the Fourth Proportional to 178,788.16, 268,292.99 and 103,943.53
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Solution
The fourth proportional to 178,788.16, 268,292.99 and 103,943.53 is: 155,979.68
Step by Step Solution
- Step 1: Write the proportion equation
178,788.16 : 268,292.99 = 103,943.53 : x - Step 2: Convert to fraction form
178,788.16/268,292.99 = 103,943.53/x - Step 3: Cross multiply
178,788.16x = 268,292.99 × 103,943.53 - Step 4: Simplify right side
178,788.16x = 27,887,320,454.85 - Step 5: Solve for x
x = 27,887,320,454.85/178,788.16 - Step 6: Final answer
x = 155,979.68
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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.