Finding the Fourth Proportional to 355,263.15, 490,209.62 and 202,307.12
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Solution
The fourth proportional to 355,263.15, 490,209.62 and 202,307.12 is: 279,153.33
Step by Step Solution
- Step 1: Write the proportion equation
355,263.15 : 490,209.62 = 202,307.12 : x - Step 2: Convert to fraction form
355,263.15/490,209.62 = 202,307.12/x - Step 3: Cross multiply
355,263.15x = 490,209.62 × 202,307.12 - Step 4: Simplify right side
355,263.15x = 99,172,892,955.91 - Step 5: Solve for x
x = 99,172,892,955.91/355,263.15 - Step 6: Final answer
x = 279,153.33
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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.