Finding the Fourth Proportional to 297,282.15, 445,991.34 and 128,830.75
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Solution
The fourth proportional to 297,282.15, 445,991.34 and 128,830.75 is: 193,275.65
Step by Step Solution
- Step 1: Write the proportion equation
297,282.15 : 445,991.34 = 128,830.75 : x - Step 2: Convert to fraction form
297,282.15/445,991.34 = 128,830.75/x - Step 3: Cross multiply
297,282.15x = 445,991.34 × 128,830.75 - Step 4: Simplify right side
297,282.15x = 57,457,399,222.16 - Step 5: Solve for x
x = 57,457,399,222.16/297,282.15 - Step 6: Final answer
x = 193,275.65
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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.