Finding the Fourth Proportional to 215,386.14, 323,079.27 and 96,919.09
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Solution
The fourth proportional to 215,386.14, 323,079.27 and 96,919.09 is: 145,378.65
Step by Step Solution
- Step 1: Write the proportion equation
215,386.14 : 323,079.27 = 96,919.09 : x - Step 2: Convert to fraction form
215,386.14/323,079.27 = 96,919.09/x - Step 3: Cross multiply
215,386.14x = 323,079.27 × 96,919.09 - Step 4: Simplify right side
215,386.14x = 31,312,547,675.12 - Step 5: Solve for x
x = 31,312,547,675.12/215,386.14 - Step 6: Final answer
x = 145,378.65
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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.