Finding the Fourth Proportional to 208,323.04, 287,485.70 and 112,829.74
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Solution
The fourth proportional to 208,323.04, 287,485.70 and 112,829.74 is: 155,704.99
Step by Step Solution
- Step 1: Write the proportion equation
208,323.04 : 287,485.70 = 112,829.74 : x - Step 2: Convert to fraction form
208,323.04/287,485.70 = 112,829.74/x - Step 3: Cross multiply
208,323.04x = 287,485.70 × 112,829.74 - Step 4: Simplify right side
208,323.04x = 32,436,936,784.72 - Step 5: Solve for x
x = 32,436,936,784.72/208,323.04 - Step 6: Final answer
x = 155,704.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.