Finding the Fourth Proportional to 202,948.08, 280,078.20 and 112,303.68
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Solution
The fourth proportional to 202,948.08, 280,078.20 and 112,303.68 is: 154,984.53
Step by Step Solution
- Step 1: Write the proportion equation
202,948.08 : 280,078.20 = 112,303.68 : x - Step 2: Convert to fraction form
202,948.08/280,078.20 = 112,303.68/x - Step 3: Cross multiply
202,948.08x = 280,078.20 × 112,303.68 - Step 4: Simplify right side
202,948.08x = 31,453,812,547.78 - Step 5: Solve for x
x = 31,453,812,547.78/202,948.08 - Step 6: Final answer
x = 154,984.53
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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.