Finding the Fourth Proportional to 268,893.84, 403,246.74 and 79,303.92
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Solution
The fourth proportional to 268,893.84, 403,246.74 and 79,303.92 is: 118,928.15
Step by Step Solution
- Step 1: Write the proportion equation
268,893.84 : 403,246.74 = 79,303.92 : x - Step 2: Convert to fraction form
268,893.84/403,246.74 = 79,303.92/x - Step 3: Cross multiply
268,893.84x = 403,246.74 × 79,303.92 - Step 4: Simplify right side
268,893.84x = 31,979,047,209.22 - Step 5: Solve for x
x = 31,979,047,209.22/268,893.84 - Step 6: Final answer
x = 118,928.15
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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.